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Supreme Court of India

MUNICIPAL CORPORATION OF GREATER MUMBAIversusM/S R.V. ANDERSON ASSOCIATES LIMITED

Citation
2026 INSC 228
Decided
11 March 2026
Disposal
Dismissed

Holding

The arbitral tribunal was validly constituted; the appointment of the presiding arbitrator by the co‑arbitrators was permissible, and MCGM’s waiver precluded any jurisdictional challenge, so the award cannot be set aside.

Summary

The Municipal Corporation of Greater Mumbai (MCGM) entered into a consultancy contract with M/s R.V. Anderson Associates Ltd. and, after completion of work, a payment dispute arose. The parties invoked an arbitration clause, appointing two arbitrators who later appointed a presiding arbitrator after the 30‑day period prescribed in Clause 8.3(b) of the agreement, without seeking appointment from the Secretary‑General of the ICSID. MCGM later challenged the constitution of the tribunal, alleging lack of jurisdiction and patent illegality, and sought to set aside the award under Sections 34 and 37 of the Arbitration and Conciliation Act, 1996. The Supreme Court examined the interpretation of Clause 8.3(b), held it to be an enabling provision, and found that MCGM’s conduct amounted to waiver of its right to object, rendering the challenge untenable. Consequently, the Court affirmed that the arbitral tribunal was validly constituted and dismissed the appeals, leaving the award in force.

Issues considered

  • Whether Clause 8.3(b) of the arbitration agreement requires the presiding arbitrator to be appointed by the Secretary‑General of the ICSID after the 30‑day period, rendering the tribunal improperly constituted.
  • Whether MCGM’s delay and conduct amount to a waiver of its right to challenge the appointment of the presiding arbitrator under Section 4 of the Arbitration and Conciliation Act, 1996.
  • Whether the arbitral award can be set aside on the ground of lack of jurisdiction or patent illegality under Section 34(2)(a)(v) and Section 34(2A).

Legislation cited

Headnote

Issue for Consideration Whether the arbitral award deserves to be set aside on the ground of lack of jurisdiction due to improper constitution of the arbitral tribunal or patent illegality. Headnotes† Arbitration and Conciliation Act, 1996 – ss.16, 34, 37, 4 Tribunal – Interpretation of arbitration clause – Waiver – The Appellant-MCGM had floated a tender and invited proposals – The stipulated duration for completion of the work under the Agreement was 72 months and the contract was designed to be implemented in stages

Subjects

Principle of party autonomyCo-arbitratorsJurisdictional aceDispute resolutionforum non conveniensSection 16 of Arbitration and Conciliation Act, 1996Mediation/conciliationNon-compliance of the arbitration agreementWaiver of rightConductConstitution of Arbitral TribunalArbitral autonomyAcquiescenceWaiverMinimum judicial interferenceAppointment of arbitrator

Judgment

                  [2026] 3 S.C.R. 525 : 2026 INSC 228

             Municipal Corporation of Greater Mumbai
                                v.
              M/s R.V. Anderson Associates Limited
                    (Civil Appeal No(s). 3277-78 of 2026)
                                 11 March 2026
           [J.K. Maheshwari* and Atul S. Chandurkar, JJ.]


                            Issue for Consideration
       Whether the arbitral award deserves to be set aside on the ground
       of lack of jurisdiction due to improper constitution of the arbitral
       tribunal or patent illegality.

                                   Headnotes†
       Arbitration and Conciliation Act, 1996 – ss.16, 34, 37, 4 –
       Constitution of Arbitral Tribunal – Interpretation of arbitration
       clause – Waiver – The Appellant-MCGM had floated a tender
       and invited proposals – The stipulated duration for completion
       of the work under the Agreement was 72 months and the
       contract was designed to be implemented in stages – The
       work under the contract was completed – A dispute arose
       in respect of payment of outstanding dues – On 09.08.2005,
       the Respondent invoked the arbitration clause as contained
       in the Agreement – On 07.07.2009, MCGM filed an application
       u/s.16 of the 1996 Act, challenging the appointment of the
       Presiding Arbitrator as a ‘nullity’ and seeking consequential
       reliefs – Arbitral Tribunal dismissed the application holding
       that the appointment of the Presiding Arbitrator was valid –
       On 05.06.2010, the Tribunal passed the final award, directing
       MCGM to pay specified amounts – Application seeking setting
       aside of the arbitral award u/s.34 of the 1996 Act was filed
       before the High Court – The Single Judge of the High Court
       dismissed the application – An appeal was preferred u/s.37 of
       the 1996 Act – High Court dismissed the appeal and confirmed
       the judgment and order of the Single Judge – Correctness:
       Held: 1. In the facts of this case, it cannot be said that the Arbitral
       Tribunal has been improperly constituted in derogation of the



* Author
526                                                              [2026] 3 S.C.R.

                            Supreme Court Reports


       arbitration agreement, or that the interpretation of the arbitration
       clause as made by the Arbitral Tribunal has resulted in any patent
       illegality, which would warrant setting aside of the award – As such,
       the High Court has rightly decided not to interfere with the arbitral
       award u/s.34(2)(a)(v) or s.34(2A) while rejecting the application to
       set aside the award. [Para 37]
       2. The MCGM raised their objection for the first time, addressing
       the letter dated 20.02.2009 to the Presiding Arbitrator, alleging
       that his appointment is a ‘nullity’ since the Co-Arbitrators had not
       succeeded in appointing the third arbitrator within 30 days and
       therefore had no power to appoint – In the facts of this case,
       beyond 30 days from the date of appointment of the second
       Arbitrator, i.e. 07.10.2005, the MCGM agreed to attempt mediation /
       conciliation by its letter dated 07.01.2006 and then informed the
       Co-Arbitrators about there being no mediation / conciliation by its
       letter dated 15.12.2006 – MCGM passively sat idle while three
       different persons were appointed as the Presiding Arbitrator under
       Clause 8.3(b) of the Agreement by the Co-Arbitrators, without any
       demur. [Paras 54, 63]
       3. In the present case, the MCGM was completely aware about the
       non-compliance of a contractual requirement under the arbitration
       agreement – It proceeded with the arbitration process without any
       demur, agreed to keep the arbitration proceedings in abeyance to
       pursue other methods of dispute resolution (mediation / conciliation),
       and did not object to such non-compliance on three different
       occasions when such alleged non-compliance took place – In
       such a case, filing of an application u/s.16 of the 1996 Act cannot
       regularize or condone its conduct and such conduct is a relevant
       consideration to decipher its understanding of the contractual terms
       while deciding the s.16 application on merits by the Tribunal even
       in the absence of statutory waiver u/s.4 being attracted – A party
       cannot keep a ‘jurisdictional ace’ up their sleeve and then claim
       that filing of the jurisdictional challenge u/s.16 would go back in
       time and wipe out the past conduct and acquiescence of the party
       which would clearly evince how the contractual terms were viewed
       by the parties – If the same is permitted, it will erode the basic
       principles of alternative dispute resolution and ethos of arbitration.
       [Paras 66, 67]
       Arbitration and Conciliation Act, 1996 – ss.16, 4 – Conduct,
       Acquiescence and waiver – Discussed. [Paras 39-42, 55, 56]
[2026] 3 S.C.R.                                                            527

              Municipal Corporation of Greater Mumbai v.
                M/s R.V. Anderson Associates Limited

                              Case Law Cited
     Hindustan Construction Co. Ltd. v. Bihar Rajya Pul Nirman Nigam
     Ltd., 2025 SCC OnLine SC 2578; Narayan Prasad Lohia v.
     Nikunj Kumar Lohia [2002] 1 SCR 1136 : (2002) 3 SCC 572 –
     relied on.
     Consolidated Construction Consortium Limited v. Software
     Technology Parks of India, 2025 INSC 574 : [2025] 4 SCR
     1846; SEPCO Electric Power Construction Corporation v. GMR
     Kamalanga Energy Ltd., 2025 INSC 1171; Quippo Construction
     Equipment Ltd. v. Janardan Nirman (P) Ltd. [2020] 6 SCR 272 :
     (2020) 18 SCC 277 – referred to.

                                List of Acts
     Arbitration and Conciliation Act, 1996.

                             List of Keywords
     Principle of party autonomy; Co-arbitrators; Jurisdictional ace;
     Dispute resolution; forum non conveniens; Section 16 of Arbitration
     and Conciliation Act, 1996; Mediation/conciliation; Non-compliance
     of the arbitration agreement; Waiver of right; Conduct; Constitution
     of Arbitral Tribunal; Arbitral autonomy; Acquiescence; Waiver;
     Minimum judicial interference; Appointment of arbitrator.

                            Case Arising From
     CIVIL APPELLATE JURISDICTION: Civil Appeal No(s). 3277-3278
     of 2026
     From the Judgment and Order dated 04.07.2025 of the High Court
     of Judicature at Bombay in ARBA (L) No. 4339 of 2024 in IA (L)
     No. 7312 of 2024

                         Appearances for Parties
     Advs. for the Appellant(s):
     Siddharth Bhatnagar, Sr. Adv., Ms. Ananya Nair, Ms. Nivedita Nair,
     Ms. Asha Gopalan Nair.
     Advs. for the Respondent(s):
     Shyam Divan, Sr. Adv., Ms. Riddhi Sancheti, Ms. Tanjul Sharma,
     Mukul Kulhari, Raghav Bhatia.
528                                                           [2026] 3 S.C.R.

                           Supreme Court Reports


                  Judgment / Order of the Supreme Court

                                  Judgment

       J.K. Maheshwari, J.

1.     Leave granted.
2.     The instant appeal(s) are directed against the judgment dated
       04.07.2025 of the High Court of Bombay (hereinafter referred to as
       “High Court”) in Arbitration Appeal (L) No. 4339 of 2024 with Interim
       Application (L) No. 7312 of 2024.
3.     By the impugned judgement, the High Court dismissed the appeal of
       the Appellant – Municipal Corporation of Greater Mumbai (hereinafter
       referred to as “MCGM”) under Section 37 of the Arbitration and
       Conciliation Act, 1996 (hereinafter referred to as “1996 Act”) and
       confirmed the judgment and order dated 19th and 20th of October,
       2022 of the learned Single Judge in Arbitration Petition No. 84 of
       2012 dismissing the application filed under Section 34 of the 1996
       Act by MCGM for setting aside the award dated 05.06.2010 of a
       three-member Arbitral Tribunal.
4.     The challenge made in the proceedings of Section 34 was threefold -
       improper constitution of the tribunal, limitation and interest. However,
       before us, the Appellant has confined their arguments only to the
       question of lack of jurisdiction due to improper constitution of the
       tribunal. As such, our examination of the facts of the case is confined
       to the question of validity of constitution of the tribunal.

       FACTS
5.     The facts shorn of unnecessary details are that the MCGM had
       floated a tender and invited proposals for ‘Consultancy Services to
       Upgrade Sewerage Operations & Maintenance Services’. The scope
       of work of the contract was for providing consultancy in upgrading
       the sewage and sewerage handling facilities, operations and routine
       maintenance protocols. This was a World Bank funded project and
       the Respondent turned out to be the successful bidder in association
       with PHE Consultants, Mumbai. Pursuant thereto, an agreement
       dated 18.09.1995 (hereinafter referred to as the “Agreement”) was
       entered into between the MCGM and M/s R.V. Anderson Associates
       Ltd., which is an engineering firm based out of Canada.
[2026] 3 S.C.R.                                                        529

              Municipal Corporation of Greater Mumbai v.
                M/s R.V. Anderson Associates Limited

6.   The stipulated duration for completion of the work under the
     Agreement was 72 months and the contract was designed to be
     implemented in stages. The work under the contract was completed
     on 20.06.2001 and a final report was submitted by the Respondent
     to the MCGM. At that stage, a dispute arose in respect of payment
     of outstanding dues. A meeting was held on 24.10.2002 where the
     Respondent’s claims were discussed and rejected by MCGM except
     to make partial payments on 17.02.2004.
7.   When things stood as thus, on 09.08.2005, the Respondent
     invoked the arbitration clause as contained in the Agreement.
     Vide communication dated 09.08.2005, received by the MCGM
     on 14.09.2005, the Respondent invoked the arbitration clause,
     particularly clause 8.3(b) of the Agreement and appointed Hon’ble
     Mr. Justice S.M. Jhunjhunwala (Retd.) as their nominee arbitrator.
     On 07.10.2005, the MCGM appointed Mr. Sharad Upasani, former
     IAS officer as their nominee arbitrator.
8.   On 04.11.2005, a meeting was held between the Appellant and the
     Respondent, where the parties discussed about exploring a possibility
     of conciliation or mediation. In reference to the said meeting, another
     letter dated 08.11.2005 was sent by the Respondent to MCGM,
     seeking to explore non-binding conciliation or mediation and in the
     meanwhile, on confirmation by the MCGM, the arbitration proceedings
     be put in abeyance. The said letter dated 08.11.2005 was also marked
     to Justice Jhunjhunwala (Retd.) and Mr. Upasani. The MCGM, by
     writing letter dated 07.01.2006 acknowledged the intention of the
     Respondent to keep arbitration proceedings in abeyance and to
     start conciliation proceedings.
9.   After a while, the Respondent wrote letters dated 12.02.2006 and
     27.02.2006 to the MCGM, requesting to participate in the conciliation.
     It appears from the record that steps were not taken by the parties to
     explore the possibility of settlement and nothing was materialized. On
     15.12.2006, MCGM addressed a letter to Mr. Upasani, informing him
     that there was no conciliation pursuant to the letter dated 08.11.2005
     and that Respondent was delaying the appointment of arbitrators.
10. On 08.01.2007, the Respondent wrote a letter to the MCGM stating
    that since MCGM no longer seems to be inclined to explore mediation
    and conciliation, the arbitration proceedings may continue and the
    two arbitrators may proceed to appoint the third arbitrator in terms
    of the contract.
530                                                         [2026] 3 S.C.R.

                         Supreme Court Reports


11. The two nominee arbitrators jointly appointed Justice D.R. Dhanuka
    (Retd.) as the Presiding Arbitrator by their letter dated 30.04.2007.
    The Presiding Arbitrator issued the notice for preliminary meeting
    vide communication dated 09.05.2007.
12. At this stage, Respondent by their letter dated 28.05.2007, objected
    to the appointment of Justice Dhanuka (Retd.) in reference to Clause
    8.6 of the Agreement, inter alia stating that the presiding arbitrator
    must not be of Indian or Canadian nationality. As such, Justice
    Dhanuka (Retd.) tendered his resignation as the Presiding Arbitrator
    on 28.06.2007.
13. The two Co-Arbitrators, prior to appointing another presiding arbitrator,
    then addressed a letter dated 17.09.2007 to both the Respondent
    and the MCGM, seeking information as to whether the parties are
    “still interested in the conduct of the pending arbitral proceedings”.
    The Respondent replied on 29.09.2007 conveying their intention
    to continue with the arbitration proceedings and requested both
    Co-Arbitrators to proceed with the appointment of the Presiding
    Arbitrator. However, the MCGM did not reply in response to the said
    letter. Thereafter, the Co-Arbitrators appointed Mr. John Savage
    as the Presiding Arbitrator on 24.04.2008, who also tendered his
    resignation on 11.08.2008.
14. On 21.10.2008, the Co-Arbitrators wrote to Mr. Anwarul Haque of
    Singapore for appointment as the Presiding Arbitrator, who conveyed
    his acceptance on 29.10.2008. Finally, on 12.11.2008, the learned
    Co-Arbitrators informed the parties that Mr. Anwarul Haque had
    been appointed as the Presiding Arbitrator and that a preliminary
    meeting was scheduled on 08.12.2008, which was first rescheduled
    to 09.12.2008 and again rescheduled to 09.01.2009.
15. The preliminary meeting of the Arbitral Tribunal was conducted on
    09.01.2009 which was duly attended by both the parties as evinced
    from the Minutes of the Preliminary Meeting of the Arbitral Tribunal.
    After the said meeting, MCGM, addressing a letter on 20.02.2009 to
    the Presiding Arbitrator, alleged that the appointment of the Presiding
    Arbitrator was contrary to the terms of the Agreement, hence a ‘nullity’.
    It was said that the learned Co-Arbitrators could not have made the
    appointment of the Presiding Arbitrator beyond 30 days from the
    date of nomination of the second arbitrator. It was stated that the
[2026] 3 S.C.R.                                                        531

              Municipal Corporation of Greater Mumbai v.
                M/s R.V. Anderson Associates Limited

     Presiding Arbitrator, therefore, has ‘no right’ to be an Arbitrator and
     requested that the Presiding Arbitrator ought to withdraw himself
     from being an Arbitrator in the matter.
16. A written objection to the letter dated 20.02.2009 was addressed
    by Respondent through its letter dated 09.03.2009. Thereafter, the
    Respondent submitted its statement of claim before the Arbitral
    Tribunal on 20.03.2009. It was at this stage, the MCGM filed an
    application under Section 16 of the 1996 Act, challenging the
    appointment of the Presiding Arbitrator as a ‘nullity’ and seeking
    consequential reliefs.
17. The learned Arbitral Tribunal, by its order dated 17.07.2009,
    (hereinafter referred to as “Section 16 order”) dismissed the
    application by a detailed order, holding that the appointment of the
    Presiding Arbitrator was valid.
18. On 05.06.2010, the Tribunal passed the final award, directing MCGM
    to pay specified amounts in United States Dollars (hereinafter referred
    to as “USD”) and in Indian Rupees (hereinafter referred to as “INR”).
    The Tribunal, under the final award, directed the payment as follows:
     I.    USD 2,078,349.25 and INR 14,76,736 along with interest
           amount on USD 1,089,926.88 and INR 1,51,596 at the rate of
           14% per annum calculated from 16th June, 2004 till payment
           or realization, whichever is earlier.
     II.   USD 55,217 and INR 15,57,500 along with USD 42,815 and
           INR 4,07,500 quantified as the cost of arbitration.
19. A corrigendum to the final award was passed on 29.06.2010,
    making some corrections to the amount payable by the MCGM to
    the Arbitrators. After the payments were made, the award was finally
    issued and released to the MCGM on 10.08.2011.
20. The application seeking setting aside of the arbitral award under
    Section 34 of the 1996 Act was filed before the High Court on
    04.11.2011. The learned Single Judge of the High Court pronounced
    its judgement dismissing the said application on 19th and 20th of
    October, 2022. An appeal was preferred under Section 37 of the
    1996 Act before the Division Bench of the High Court which has been
    dismissed vide the Impugned Order. Upon filing the present appeals
    by the Appellant, notice was issued vide order dated 29.08.2025 and
    the operation of the impugned order was stayed.
532                                                        [2026] 3 S.C.R.

                         Supreme Court Reports


       FINDINGS OF THE TRIBUNAL AND HIGH COURT
21. The main thrust of the jurisdictional challenge as raised by the
    Appellant is that the Presiding Arbitrator had been appointed after the
    expiration of 30 days from 07.10.2005, i.e., the day when the MCGM
    had appointed its nominee arbitrator. It has been contended by the
    Appellant throughout that as per Clause 8.3(b) of the Agreement, once
    period of 30 days had expired, the Arbitral Tribunal was rendered
    coram non judice and the Co-Arbitrators had no power to appoint
    the Presiding Arbitrator, who could have only been appointed by
    the Secretary General of the International Centre for Settlement of
    Investment Disputes, Washington D.C. (hereinafter referred to as
    “ICSID”).

       Tribunal’s findings
22. The learned Arbitral Tribunal, while dismissing the challenge laid
    out to its jurisdiction in the application filed under Section 16 of
    the 1996 Act, found that the provision to approach the Secretary
    General of the ICSID for appointment of the Presiding Arbitrator was
    merely an enabling provision, which did not denude the power of
    the Co-Arbitrators to appoint the Presiding Arbitrator. It was found
    that in this case, admittedly, neither party has made a reference to
    the Secretary General of ICSID and as such, the power of the Co-
    Arbitrators to appoint the Presiding Arbitrator cannot be said to be
    ousted. The Tribunal observed that since arbitral proceedings were
    kept in abeyance on the request of the parties, hence, no fault can be
    found with the decision of the Co-Arbitrators to appoint the Presiding
    Arbitrator. It was held that the conduct of MCGM in participating in
    the arbitral process amounts to waiver under Section 4 of the 1996
    Act and the decision to challenge the appointment of the Presiding
    Arbitrator was barred by limitation.

       Findings of the High Court in the Section 34 order
23. Learned Single Judge dismissed the application vide order dated
    19th and 20th October, 2022. On the question of jurisdiction, it was
    found that the interpretation of Clause 8.3(b) made by the Tribunal
    is not just a possible or plausible or reasonable view, but rather it is
    the only reasonable view, therefore, interference by ‘setting aside’
    the award under Section 34 is not warranted. The Court observed
[2026] 3 S.C.R.                                                         533

              Municipal Corporation of Greater Mumbai v.
                M/s R.V. Anderson Associates Limited

     that in case the clause is interpreted in a manner that once the 30-
     day period had expired, the Co-Arbitrators had no power to appoint
     the Presiding Arbitrator and had to wait indefinitely for the parties to
     approach the ICSID, it will lead to absurdity and incongruity since
     there was no time limit for the parties to approach the ICSID. In
     such a situation, the Arbitrators could not be said to be completely
     powerless after their appointment.

     Findings of the High Court in the Section 37 order
24. The High Court, while dismissing the appeal under Section 37 of the
    1996 Act vide the Impugned Order has approved the interpretation of
    Clause 8.3(b) as made by the learned Single Judge and the Arbitral
    Tribunal. The Court observed that while exercising appellate power
    under Section 37, the Court cannot sit in appeal over interpretation of
    the contractual clauses by the Arbitrator merely because a different
    interpretation of the said clause is possible. Since the appointment
    of the arbitrator is in line with the provisions of Clause 8.3(b) of the
    Agreement, no interference is warranted.

     ARGUMENTS ADVANCED
25. Learned Senior Counsel Mr. Siddharth Bhatnagar for the MCGM,
    argued with vehemence that the arbitral award deserves to be set
    aside due to improper constitution of the tribunal and the award
    lacks jurisdiction. It has been submitted that the Arbitral Tribunal,
    learned Single Judge and the Division Bench of the High Court have
    interpreted and substituted the contractual scheme as agreed by the
    parties, which militates against the principle of party autonomy. It has
    been urged that Clause 8.3(b) of the Agreement permits a period
    of 30 days from the date of appointment of the latter Arbitrator for
    the arbitrators to jointly appoint the Presiding Arbitrator, after which
    the Tribunal is rendered coram non judice and loses its power to
    appoint the Presiding Arbitrator. In such a case, he submits, the
    only way the Presiding Arbitrator could have been appointed, would
    have been by the parties approaching the Secretary General of the
    ICSID since use of the word ‘shall’ in Clause 8.3(b) of the Agreement
    makes this the only possible interpretation of the contractual terms.
    As such, entire arbitral process becomes ‘non-est’ in law due to a
    foundational jurisdictional defect which is incurable.
534                                                          [2026] 3 S.C.R.

                         Supreme Court Reports


26. The above said arguments have been met with equal vehemence
    by the learned Senior Counsel Mr. Shyam Divan appearing for the
    Respondent. He submitted that the Tribunal has passed a detailed
    award after interpreting the clauses of the Agreement and the
    question of jurisdiction has been aptly dealt with by the learned
    Arbitral Tribunal. He further contended that once the award has
    been passed by the Arbitral Tribunal, the scope of interference at
    the stage of a challenge under Section 34 of the 1996 Act is limited.
    Such scope of interference is even more limited in an appeal under
    Section 37 of the 1996 Act and more so in a special leave petition
    arising out of the said appeal. It is urged that once the learned Arbitral
    Tribunal has reached a conclusion with respect to interpretation of
    the contract, there is no scope for re-interpretation and the Courts
    must not sit in appeal in these proceedings merely because a
    different view may be possible. He has urged assiduously that Clause
    8.3(b) is an enabling clause and not a restricting clause, it merely
    provides an additional avenue for the parties to seek appointment
    of the Presiding Arbitrator before the Secretary General of ICSID in
    case there is an impasse and the Co-Arbitrators fail to appoint the
    Presiding Arbitrator within the prescribed time period of 30 days.
    It is argued that neither party took recourse before the ICSID as
    specified under this clause and as such, MCGM has waived its
    right to challenge the appointment of arbitrator after having actively
    participated in the arbitration. It is therefore, submitted that the
    jurisdictional challenge is an afterthought, after the arbitral process
    was well underway and is hit by waiver.

       ANALYSIS OF SUBMISSIONS
27. Having heard learned counsel for the parties at length and on perusal
    of the facts and material placed on record, the short question which
    falls for our consideration is whether the arbitral award deserves to
    be set aside on the ground of lack of jurisdiction due to improper
    constitution of the arbitral tribunal or patent illegality?

       Interpretation of Clause 8.3(b) of the Agreement
28. The instant jurisdictional challenge hinges on Clause 8.3(b) of the
    Agreement and its interpretation by the learned Arbitral Tribunal.
    Clause 8 of the Agreement is of utmost relevance in this case, and
    is therefore reproduced as thus:
[2026] 3 S.C.R.                                                             535

              Municipal Corporation of Greater Mumbai v.
                M/s R.V. Anderson Associates Limited

           “8. SETTLEMENT OF DISPUTES
           8.1 Amicable Settlement
           The Parties shall use their best efforts to settle amicably all
           disputes arising out of or in connection with this contract
           or the interpretation thereof.
           8.2 Right to Arbitration
           Any dispute between the Parties as to matters arising
           pursuant to this Contract which cannot be settled amicably
           within thirty (30) days after receipt by one Party of the
           other Party’s request for such amicable settlement may
           be submitted by either Party to arbitration in accordance
           with the provisions of Clauses 8.3 through 8.7 hereinafter.
           8.3 Selection of Arbitrators
           Each dispute submitted by a Party to arbitration shall be
           heard by a sole arbitrator or an arbitration panel composed
           of three arbitrators, in accordance with the following
           provisions:
           (a) Where the Parties agree that the dispute to appoint a
           sole arbitrator or, failing agreement on the identity of such
           sole arbitrator within thirty (30) days after receipt by the
           other Party of the proposal of a name for such appointment
           by the Party who initiated the proceedings, either Party
           may apply to the Federation Internationale des Ingenieurs-
           Conseil (FIDIC) of Lausanne, Switzerland for a list of not
           fewer than five nominees and on receipt of such list, the
           Parties shall alternately strike names therefrom, and the last
           remaining nominee on the list shall be the sole arbitrator
           for the matter in dispute. If the last remaining nominee
           has not been determined in this manner within sixty (60)
           days of the date of the list. FIDIC shall appoint upon the
           request of either Party and from such list or otherwise, a
           sole arbitrator for the matter in dispute.
           (b) Where the Parties do not agree that the dispute
           concerns a technical matter, the Client and Consultants
           shall each appoint one arbitrator, and these two arbitrators
536                                                         [2026] 3 S.C.R.

                      Supreme Court Reports


       shall jointly appoint a third arbitrator, who shall chair the
       arbitration panel. If the arbitrators named by the Parties
       do not succeed in appointing a third arbitrator within thirty
       (30) days after the latter of the two arbitrators named by
       the Parties has been appointed, the third arbitrator shall, at
       the request of either Party, be appointed by the Secretary
       General of the International Centre for Settlement of
       Investment Disputes, Washington D.C.
       (c) If, in a dispute subject to Clause 8.3(b), one Party fails
       to appoint its arbitrator within thirty (30) days after the other
       Party has appointed its arbitrator, the Party which has
       named an arbitrator may apply to the Secretary General
       of the International Centre for Settlement of Investment
       Disputes, Washington D.C. to appoint a sole arbitrator
       for the matter in dispute, and the arbitrator appointed
       pursuant to such application shall be the sole arbitrator
       for that dispute.
       8.4 Rules of Procedure
       Except as stated herein, arbitration proceedings shall
       be conducted in accordance with the rules of procedure
       for arbitration of the United Nations Commission of
       International Trade Law (UNCITRAL) as in force on the
       date of this Contract.
       8.5 Substitute Arbitrators
       If for any reason an arbitrator is unable to perform his
       function, a substitute shall be appointed in the same
       manner as the original arbitrator.
       8.6 Nationality and Qualifications of Arbitrations
       The sole arbitrator or the third arbitrator appointed pursuant
       to paragraphs (a) through (c) of Clause 8.3 hereof shall be
       an internationally recognized legal or technical expert with
       experience in relation to the matter in dispute and shall
       not be a national of the Consultants’ home country or of
       the Government. For the purpose of this clause, “home
       country” means any of:
       (a) the country of incorporation of the Consultants or
[2026] 3 S.C.R.                                                              537

               Municipal Corporation of Greater Mumbai v.
                 M/s R.V. Anderson Associates Limited

           (b) the country in which the Consultants’ (or any of their
           Members’) principal place of business is located; or
           (c) the country of nationality of a majority of the Consultants’
           (or of any Members’) shareholders; or
           (d) the country of nationality of the Subconsultant
           concerned, where the dispute involves a subcontract.
           8.7 Miscellaneous
           In any arbitration proceeding hereunder:
           (a) proceedings shall, unless otherwise agreed by the
           Parties, be held in Bombay;
           (b) the English language shall be the official language for
           all purposes; and
           (c) the decision of the sole arbitrator or of a majority of
           the arbitrators (or of the third arbitrator if there is no such
           majority) shall be final and binding and shall be enforceable
           in any court of competent jurisdiction, and the Parties
           hereby waive any objection to or claims of immunity in
           respect of such enforcement.”
29. On a plain reading, Clause 8.3(b) provides that the parties shall each
    appoint one arbitrator and if the two arbitrators do not succeed in
    appointing the third arbitrator who shall preside the arbitration panel,
    within 30 days, then, on the request of either party, the ICSID shall
    appoint the third arbitrator. Such is the requirement in respect of
    appointment of the three arbitrators who shall constitute the Arbitral
    Tribunal.
30. On an objective perusal of the arbitration clause, it appears to be
    enabling in nature. It does not provide that in case the two arbitrators
    do not succeed in appointing the third arbitrator within the period so
    prescribed, the two arbitrators will lose their power of appointment
    of the third arbitrator. Rather, the power of appointment of the third
    arbitrator acts in an independent sphere when juxtaposed with the
    second part of the clause which is enabling in nature, permitting
    the parties to approach the ICSID after 30 days, in case the two
    arbitrators appointed by the parties reach an impasse and do not
    succeed in making such appointment.
538                                                           [2026] 3 S.C.R.

                          Supreme Court Reports


31. The consequence of non-appointment of the Presiding Arbitrator
    within the prescribed period has not been specified in the Agreement.
    In fact, the clause merely grants liberty to the parties to seek the
    appointment of the Presiding Arbitrator, after a period of 30 days,
    before the ICSID. The intent of the parties while drafting the arbitration
    clause could not have been to withdraw the power to appoint the
    Presiding Arbitrator from the Co-Arbitrators appointed by the parties
    upon expiry of 30 days from the date of appointment of the second
    arbitrator, otherwise, it would have certainly found mention in the
    Agreement. The intent of the clause appears to be that in case both
    Arbitrators cause a delay in appointment of the third arbitrator, the
    parties retain the authority to remedy the delay and after 30 days of
    such non-appointment, they have liberty to apply before the ICSID to
    address the delay and upon making such a request, the ICSID shall
    appoint the third Arbitrator. Hence, in absence of such a stipulation
    in the said clause and looking to the intent of the language used, the
    Court while exercising its jurisdiction in proceedings arising out of
    Section 34 of the 1996 Act, cannot read something into the contract
    which it does not explicitly provide.
32. The manner in which a contract is understood and acted upon by the
    parties is the best aid to interpreting the contract and understanding
    the intent of the parties while drafting the contract. The Arbitral Tribunal
    has interpreted the arbitration clause in a manner which is certainly
    plausible, holding that it is enabling in nature, on the contingency
    that an application is made by either party before the ICSID. We
    are in complete agreement with the said view, however, addressing
    the contentions made before us, it is seen that the initial part of
    Clause 8.3(b), “Where the Parties do not agree that the dispute
    concerns a technical matter, the Client and Consultants shall each
    appoint one arbitrator, and these two arbitrators shall jointly appoint
    a third arbitrator, who shall chair the arbitration panel.” lays down the
    composition of the arbitral tribunal and their method of appointment,
    it vests the power of appointment of the third arbitrator with the Co-
    Arbitrators appointed by the parties. The subsequent part of Clause
    8.3(b) reads “If the arbitrators named by the Parties do not succeed
    in appointing a third arbitrator within thirty (30) days after the latter
    of the two arbitrators named by the Parties has been appointed, the
    third arbitrator shall, at the request of either Party, be appointed by
    the Secretary General of the International Centre for Settlement of
[2026] 3 S.C.R.                                                          539

              Municipal Corporation of Greater Mumbai v.
                M/s R.V. Anderson Associates Limited

     Investment Disputes, Washington D.C.”. This deals with a contingency
     which breaks into three critical components, firstly, the contingency is
     triggered upon the expiration of the thirty-day period from the date of
     appointment of the second arbitrator without the appointment of the
     third arbitrator; secondly, the condition precedent is that a request
     must be made by either party, meaning thereby that the Secretary
     General of ICSID does not have the power to act sua sponte (on
     its own accord); and thirdly, by using the word ‘shall’, the mandate
     is that once such a request is made by either party, the Secretary
     General of ICSID is required to make such appointment.
33. The parties have, in their commercial wisdom, drafted a ‘fail-safe’
    into the arbitration clause to deal with a contingency where the Co-
    Arbitrators fail to appoint the third arbitrator, so as not to leave the
    dispute resolution process in the balance. They have retained with
    themselves the power to approach the ICSID and make a request
    for appointment of the third arbitrator in case of such a contingency.
    At the very first instance, when the Co-Arbitrators did not succeed in
    appointing the third arbitrator within thirty days of the appointment of
    Mr. Upasani, neither party exercised the option to approach the ICSID.
    If the parties had exercised such an option upon the contingency
    being triggered, certainly an argument could have been made that
    despite a request being made before the ICSID, the Co-Arbitrators
    have proceeded to appoint the third arbitrator and therefore the arbitral
    tribunal is improperly constituted. In the present case, however, the
    parties have not exercised the option to approach the ICSID and
    non-exercise of the contingency cannot make the initial part of the
    arbitration clause otiose. It certainly cannot be said that after the
    period of thirty days, the power of the Co-Arbitrators to appoint the
    third arbitrator was completely extinguished.
34. Much emphasis has been placed by the learned Senior Counsel
    Mr. Bhatnagar on the use of the word ‘shall’ in Clause 8.3(b) to
    argue that once the 30-day period from the date of appointment of
    the second arbitrator elapses, the only way to appoint the Presiding
    Arbitrator is through the Secretary General of ICSID. We are unable
    to agree with this submission since the word ‘shall’ has been used
    to enable the parties and the ICSID to proceed in the matter, upon
    a request being made by either party, upon the non-appointment of
    third, i.e. Presiding arbitrator, otherwise it will lead to procedural and
540                                                           [2026] 3 S.C.R.

                           Supreme Court Reports


       commercial absurdity. By using ‘shall’ in the clause, the responsibility
       has been cast on the Secretary General of the ICSID to appoint the
       third Arbitrator only upon a request made by either of the parties. It
       provides a mandate that the President of the ICSID shall mandatorily
       appoint the third arbitrator and this mandate is based on the condition
       precedent, i.e., a request being made by either of the parties. It is
       nobody’s case that a request has been made by either party before
       the ICSID after 30 days and prior to appointment of the Presiding
       Arbitrator by the Co-Arbitrators. The enabling clause is permissive
       and only attracts when the condition precedent of making a request
       before the ICSID is satisfied. The parties have, in their wisdom and
       in a specific circumstance, retained the power and liberty, to make
       a request before the ICSID, which shall appoint the third arbitrator.
       The clause cannot, therefore, be read to be restrictive in nature as
       contended by the Appellant, however, this Court is inclined to reject
       this argument in line of the decision of the Arbitral Tribunal.
35. Another important factor is that once the arbitrators were appointed
    by the respective parties, which initiated the arbitration by sending
    a notice, it cannot be said that the arbitrators have to indefinitely
    wait for the parties to apply before the ICSID in order to appoint the
    Presiding Arbitrator and for the arbitration to proceed. If such an
    interpretation is made, it will lead to commercial irrationality, since
    until the parties approach the ICSID, the two arbitrators would be
    left in a state of limbo. This could not have been the intent of the
    parties within the framework of party autonomy and from the conduct
    of the parties, which will be discussed in the subsequent part of
    this judgement, the parties never interpreted the contract in such a
    manner. In view of the aforesaid discussion, it cannot be said that
    the parties would want their contract to become unworkable and
    for the dispute resolution clause to work in such a manner that the
    arbitrators appointed by the parties after invocation of arbitration
    would wait indefinitely for either of the parties to approach the ICSID
    seeking appointment of the third arbitrator.
36. Of course, while saying so we are cognizant of the sacrosanct principle
    of party autonomy and the fact that Courts cannot substitute the
    commercial wisdom of parties as is borne out from the plain meaning
    of the words used in the contract. However, Clause 8.3(b) has been
    rightly interpreted by the learned Arbitral Tribunal in the Section 16
    order and the matter has been dealt with in the right perspective
[2026] 3 S.C.R.                                                          541

                 Municipal Corporation of Greater Mumbai v.
                   M/s R.V. Anderson Associates Limited

     by the learned Single Judge in Section 34 and the learned Division
     Bench in the Section 37 appeal. The law in respect of the scope of
     interference permissible in proceedings arising out of a challenge to
     the arbitral award under Section 34 of the 1996 Act, is well settled.
     Generally, the scope of interference is quite narrow. The arbitrator is
     the master of evidence and so also of interpretation of the terms of
     contract. If the arbitrator has reached at a certain view with respect to
     interpretation which is plausible, interference is not warranted merely
     because some other view may also be possible. This is a settled
     principle of law which has been recently reiterated in the decisions
     of this Court in Consolidated Construction Consortium Limited v.
     Software Technology Parks of India1 and SEPCO Electric Power
     Construction Corporation v. GMR Kamalanga Energy Ltd.2 The
     role of the Court, in the proceedings arising out of Section 34 of the
     1996 Act, is clearly demarcated. The approach of the Court must be
     to respect arbitral autonomy and ensure minimum judicial interference.
37. As rightly observed by the learned Arbitral Tribunal in the Section 16
    order as well as the High Court, this is not a case where the Arbitral
    Tribunal has been composed completely outside the scope of the
    agreement and a procedure alien to the agreement has been adopted
    to appoint the arbitrators. The difference in interpretation is merely
    as to whether the third arbitrator could only have been appointed by
    the Secretary General of ICSID or by the two arbitrators nominated
    by the parties. In any case, in the facts of this case, it cannot be
    said that the Arbitral Tribunal has been improperly constituted in
    derogation of the arbitration agreement, or that the interpretation of
    the arbitration clause as made by the Arbitral Tribunal has resulted
    in any patent illegality, which would warrant setting aside of the
    award. As such, the High Court has rightly decided not to interfere
    with the arbitral award under Section 34(2)(a)(v) or Section 34(2A)
    while rejecting the application to set aside the award.

     Conduct, Acquiescence and Waiver
38. Even though we have found that the Arbitral Tribunal has reached
    the right conclusion with respect to interpretation of the arbitration



1   2025 INSC 574.
2   2025 INSC 1171.
542                                                             [2026] 3 S.C.R.

                           Supreme Court Reports


       clause as contained in the Agreement and that the appointment
       of the third arbitrator is in line with the arbitration clause, there is
       yet another aspect of the instant matter which we must address,
       since it forms a part of the reasoning of the Section 16 order. Even
       assuming that there is non-compliance of the arbitration agreement
       in appointing the third arbitrator, whether the MCGM has waived its
       right to object to the same due to its conduct?
39. Section 16 of the 1996 Act permits the arbitral tribunal to rule on
    its own jurisdiction. It is relevant and is therefore quoted as under:
            “16. Competence of arbitral tribunal to rule on its
            jurisdiction.
            (1) The arbitral tribunal may rule on its own jurisdiction,
            including ruling on any objections with respect to the
            existence or validity of the arbitration agreement, and for
            that purpose, —
                  (a) an arbitration clause which forms part of a contract
                  shall be treated as an agreement independent of the
                  other terms of the contract; and
                  (b) a decision by the arbitral tribunal that the contract
                  is null and void shall not entail ipso jure the invalidity
                  of the arbitration clause.
            (2) A plea that the arbitral tribunal does not have
            jurisdiction shall be raised not later than the submission
            of the statement of defence; however, a party shall not
            be precluded from raising such a plea merely because
            that he has appointed, or participated in the appointment
            of, an arbitrator.
            (3) A plea that the arbitral tribunal is exceeding the scope of
            its authority shall be raised as soon as the matter alleged
            to be beyond the scope of its authority is raised during
            the arbitral proceedings.
            (4) The arbitral tribunal may, in either of the cases referred
            to in sub-section (2) or sub-section (3), admit a later plea
            if it considers the delay justified.
            (5) The arbitral tribunal shall decide on a plea referred to
            in sub-section (2) or sub-section (3) and, where the arbitral
[2026] 3 S.C.R.                                                            543

              Municipal Corporation of Greater Mumbai v.
                M/s R.V. Anderson Associates Limited

           tribunal takes a decision rejecting the plea, continue with
           the arbitral proceedings and make an arbitral award.
           (6) A party aggrieved by such an arbitral award may make
           an application for setting aside such an arbitral award in
           accordance with section 34.”
40. On the other hand, Section 4 of the 1996 Act deals with waiver of
    right to object. It provides as follows:
           “4. Waiver of right to object. –
           A party who knows that –
                (a) any provision of this Part from which the parties
                may derogate, or
                (b) any requirement under the arbitration agreement,
                has not been complied with and yet proceeds with
                the arbitration without stating his objection to such
                non-compliance without undue delay or, if a time
                limit is provided for stating that objection, within that
                period of time, shall be deemed to have waived his
                right to so object.”
41. It has been argued by the Respondent that even though a challenge
    to arbitrability was raised by the MCGM under Section 16 of the
    1996 Act, at its core, it is a challenge to non-compliance of the
    requirements under the arbitration agreement with regard to the
    procedure for appointment. In fact, the learned Arbitral Tribunal
    in its order has observed that the challenge by the MCGM is that
    the appointment of the Presiding Arbitrator is a ‘nullity’ and as
    such, the Arbitral Tribunal lacks jurisdiction. In this context, it is
    to be examined whether MCGM has waived its right to object to
    the appointment of the Presiding Arbitrator by the Co-Arbitrators
    appointed by the parties.
42. MCGM has claimed before us and also before the Tribunal and the
    High Court that once the period of thirty days had elapsed from the
    date of appointment of the second arbitrator, Mr. Upasani, the Co-
    Arbitrators were denuded of their power to appoint the Presiding
    Arbitrator and it was only the Secretary General of ICSID who could
    make such appointment. As discussed, such an interpretation of the
544                                                           [2026] 3 S.C.R.

                           Supreme Court Reports


       arbitral agreement cannot be countenanced. In any case, it is pertinent
       to refer to the conduct of MCGM to understand the aspect of waiver
       and acquiescence and its understanding of the arbitration clause.
43. On a perusal of the communication between the parties and the history
    of the present dispute, the authenticity whereof is not disputed by
    either party, it appears that Mr. Upasani was appointed by MCGM on
    07.10.2005. Thereafter, in the meeting dated 04.11.2005, there was
    some discussion between the parties about pursuing conciliation/
    mediation which has been referenced in the letter dated 08.11.2005
    by the Respondent to the MCGM, a copy whereof has been forwarded
    to the Co-Arbitrators, Justice Jhunjhunwala (Retd.) and Mr. Upasani.
    The relevant portion of the said letter was as follows:
            “…
            During the meeting we had with yourself on 04.11.2005
            in your office the possibility of amicably settling the
            issue under dispute through a process of ‘non-binding
            conciliation’ or ‘mediation’ was discussed and positively
            received by yourself.
            As we are keen to avoid litigation and we consider it
            appropriate to attempt to amicably resolve issues to the
            fullest extent possible. We, therefore, request you to confirm
            MCGM’s agreement to participate actively in such ‘non-
            binding conciliation’ or ‘mediation’ with us, having regard to
            a time limit of six months for (sic) resolution of the issues.
            Upon receipt of MCGM’s confirmation of the above, we will
            request the arbitrators to keep the proceedings in abeyance
            while such conciliation proceedings are continuing between
            us and MCGM.
            In case the parties are unable to arrive at a mutual
            settlement on all the issues, those issues not amicably
            settled may be taken up by the Arbitrators in the arbitration
            proceedings. We, therefore, await your confirmation within
            15 days of receipt of this letter, so that the Arbitrators
            could be appropriately informed. You are also requested
            to kindly initiate the conciliation proceedings.
            …”
[2026] 3 S.C.R.                                                           545

                Municipal Corporation of Greater Mumbai v.
                  M/s R.V. Anderson Associates Limited

44. This letter was not replied to by the MCGM until 07.01.2006 when
    the MCGM wrote a letter addressed to the Respondent, relevant
    part whereof has been reproduced:
           “…
           Dear Sir,
           Prejudice to our right, we have noted your intention to keep
           arbitration proceedings in abeyance & start conciliation
           proceedings. It is to inform further that contractors have
           initiated arbitration process in this case without taking
           efforts for resolving the issues of dispute, if any. Please
           note that MCGM’s doors were always open and are open
           for reconciliation, if any.
           …”
45. It is relevant to note that at this stage, there was no objection raised by
    MCGM that the Co-Arbitrators, due to the operation of Clause 8.3(b),
    after the elapsing of 30 days period from the date of appointment of
    Mr. Upasani, had lost the power to appoint the Presiding Arbitrator
    and to proceed with the arbitration. It has also not been indicated
    that they had applied or that are intending to apply before the ICSID
    for appointment of the Presiding Arbitrator. The intent of the parties
    was clearly to pursue other alternative methods of dispute resolution
    such as mediation or conciliation and to amicably settle the disputes,
    prior to pursuing arbitration with respect to issues which remained
    unsettled.
46. It appears from the record that thereafter the parties did not, in fact,
    pursue mediation/conciliation and on 15.12.2006, the MCGM informed
    their nominee arbitrator, Mr. Upasani that there was no conciliation
    and that it was in fact the Respondent which was delaying the
    appointment of Arbitrator in order to ‘get a contract from MCGM’.
    In this letter, the MCGM has also alleged that the appointment of
    Arbitral Tribunal by the Respondent is of no effect, which was under
    examination by the MCGM. It is not explained why the appointment
    made by Respondent was of no effect. It is, however, acknowledged
    by the MCGM that the appointment of arbitrators had been delayed.
    Relevant portion of the letter dated 15.12.2006 has been quoted
    herein for reference:
546                                                           [2026] 3 S.C.R.

                          Supreme Court Reports


           “…
           There was no conciliation as alleged under the letter
           dated 8th November 2005. It appears that the Claimant
           was delaying appointment of Arbitrators to get a contract
           from MCGM.
           From the records, we feel that appointment of Arbitral
           Tribunal by Claimant is of no effect. However, MCGM will
           examine the case and report soon.”
47. On 08.01.2007, a letter was written by the Respondent to MCGM
    which was received by MCGM on 14.02.2007. The relevant portion
    of the said letter is reproduced below for reference:
           “…
           However, it now appears, based on MCGM’s above
           referred letter that MCGM does not intend to attempt
           non-binding mediation & conciliation efforts to resolve the
           dispute amicably.
           We are therefore left with no option but to continue with
           the arbitration proceedings and request the two arbitrators
           to proceed with the appointment of the third arbitrator in
           accordance with the contract.”
48. A copy of this letter was also marked to Justice Jhunjhunwala
    (Retd.) and Mr. Upasani. By means of the letter dated 08.01.2007,
    the Respondent made it clear to MCGM as well as the two learned
    Arbitrators that it is fully intent to proceed with arbitration and in fact,
    explicitly requested them to appoint the third arbitrator. This letter
    was also not replied to by the MCGM. The MCGM did not, at this
    stage, take a plea that due to elapse of 30 days, the Co-Arbitrators
    had lost discretion or competence to appoint the Presiding Arbitrator
    and therefore the Respondent could not have requested the Co-
    Arbitrators to appoint the third arbitrator. No objection with respect
    to non-compliance of the terms of the agreement was raised by the
    MCGM.
49. It was on 30.04.2007 that the Co-Arbitrators appointed Justice D.R.
    Dhanuka (Retd.) as the Presiding Arbitrator. If MCGM’s argument is
    to be accepted, this would be the first instance of non-compliance
    of the agreement. If in fact it was under the impression that the Co-
[2026] 3 S.C.R.                                                         547

                Municipal Corporation of Greater Mumbai v.
                  M/s R.V. Anderson Associates Limited

     Arbitrators had no power to appoint the Presiding Arbitrator, at first
     instance itself, it should have objected to the appointment of Justice
     D. R. Dhanuka (Retd.), which it admittedly did not do. Justice D.R.
     Dhanuka (Retd.), acting in the capacity of the Presiding Arbitrator then
     issued a notice dated 09.05.2007 to both parties for a preliminary
     meeting. At this stage, it was actually the Respondent which raised an
     objection to his appointment by means of their letter dated 28.05.2007,
     alleging non-compliance of Clause 8.6 of the Agreement, since the
     Presiding Arbitrator could not be of Indian origin.
50. Justice D.R. Dhanuka (Retd.) withdrew his acceptance to act as the
    Presiding Arbitrator on 28.06.2007 and thereafter, the Co-Arbitrators
    addressed the letter dated 17.09.2007 to both parties, posing a
    question as to whether the parties were still interested in the conduct
    of arbitral proceedings and to continue with the proceedings. Even
    though MCGM did not reply to this letter of the Co-Arbitrators, the
    Respondent replied to the Co-Arbitrators with a copy marked to the
    MCGM vide letter dated 29.09.2007, mentioning that they intend to
    continue the arbitration proceedings. The Respondent also mentioned
    that the Co-Arbitrators should proceed with the appointment of the
    third arbitrator and inform the parties. No reply was made by the
    MCGM to this letter either, it did not inform the Co-Arbitrators or
    the Respondent that since more than 30 days had elapsed, the
    appointment necessarily had to be made by the Secretary General,
    ICSID and could not be made by the Co-Arbitrators as its case
    now is. Relevant portion of the letter dated 29.09.2007 has been
    reproduced below for reference:
           “…
           In reference to your above letter, we confirm our intent
           to continue with the arbitration proceedings. We request
           your goodselves to proceed with the appointment of the
           third arbitrator.
           We await your subsequent communication confirming the
           appointment of the third arbitrator and commencement
           date for the proceedings.
           …”
51. On 24.04.2008, the Co-Arbitrators appointed Mr. John Savage as
    the Presiding Arbitrator, who tendered his resignation on 11.08.2008.
548                                                             [2026] 3 S.C.R.

                           Supreme Court Reports


       Yet again, even to the appointment of Mr. John Savage, MCGM did
       not raise an objection or point out that the Co-Arbitrators had no
       power to appoint the third arbitrator.
52. After Mr. John Savage’s resignation, the letter dated 21.10.2008
    was addressed by the Co-Arbitrators to Mr. Anwarul Haque for
    appointment as the Presiding Arbitrator, who communicated his
    acceptance vide letter dated 29.10.2008. Mr. Justice Jhunjhunwala
    (Retd.) on behalf of the arbitral tribunal, addressed the letter dated
    12.11.2008 to both parties, scheduling the preliminary meeting of
    the Arbitral Tribunal on 08.12.2008, which was further rescheduled
    to 09.12.2008 and then 09.01.2009. Even at that stage, there was
    no objection raised by MCGM to the appointment of the Presiding
    Arbitrator by the Co-Arbitrators.
53. The preliminary meeting of the Arbitral Tribunal was conducted on
    09.01.2009. The minutes of the meeting reflect that the meeting
    was attended by representatives of both parties. The MCGM was
    represented through Mr. S.B. Sardar, AE (SO) P & C along with Mr.
    A.B. Mengole, AE (SO) P & C and Mr. R.H. Murya, SE (SO) P & C.
    The minutes of the preliminary meeting do not reflect any objection
    being raised by the MCGM to the constitution of the tribunal.
54. When things stood thus, as explained above, the MCGM raised their
    objection for the first time, addressing the letter dated 20.02.2009
    to the Presiding Arbitrator, alleging that his appointment is a ‘nullity’
    since the Co-Arbitrators had not succeeded in appointing the third
    arbitrator within 30 days and therefore had no power to appoint.
    Relevant portion of the letter dated 20.02.2009 has been reproduced
    below for reference:
            “As per facts, the appointed Arbitrators Mr. S.P. Upasani and
            Mr. Justice S. M. Jhunjhunwala (Retd.) have not succeeded
            in appointing within 30 days after their appointment, i.e.
            they have ought to have appointed the third arbitrator on or
            about 07.11.2005. Since they have not appointed the third
            Arbitrator within 30 days, as per law, they have forfeited
            their right to appoint the third Arbitrator within 30 days.
            Thus, as per clause 8(b), the third Arbitrator is required to be
            appointed by the Secretary General of International Center
            of Settlement of Investment Disputes Washington D.C.
[2026] 3 S.C.R.                                                          549

              Municipal Corporation of Greater Mumbai v.
                M/s R.V. Anderson Associates Limited

           The claimant Mr. R.V. Anderson Associates + PHE
           Consultants had not (illegible) under clause 8.3(b) to the
           Secretary General of International Center for Settlement
           of Investment (illegible) though after Arbitrator Mr. S.P.
           Upasani was appointed on 07.10.2005 and add 30 days
           period is over as 07.10.2005 i.e. as on 07.11.2005.
           Thus you have no right to be an Arbitrator under the
           Arbitration Agreement under the Contract.
           The MCGM request you to withdraw your self as Arbitrator
           since your appointment is not in consonance with Arbitration
           Agreement under this contract.”
55. Application under Section 16 of the 1996 Act was then filed by
    MCGM on 07.07.2009 prior to filing the Statement of Defence. The
    Respondent, in its reply to the letter dated 20.02.2009 as well as the
    application inter alia contended that the MCGM has not approached
    the Secretary General of the ICSID seeking appointment of the third
    arbitrator, and has not raised this objection at the earliest, therefore
    it may not raise this objection at this stage.
56. It is clear from the above factual conspectus that the MCGM did
    not raise any objection to the appointment of the third arbitrator by
    the Co-Arbitrators until after the preliminary meeting of the Arbitral
    Tribunal was conducted by Mr. Anwarul Haque, who happened to
    be the third person appointed as the Presiding Arbitrator by the
    Co-Arbitrators. It is nobody’s case that the third arbitrator appointed
    by the parties was ineligible to be appointed as an arbitrator under
    Section 12 of the 1996 Act. In fact, it has been recorded in the Section
    16 order that MCGM itself conceded that Section 12 and 13 have
    no applicability to the present case. Its challenge was limited to the
    aspect of improper constitution of tribunal due to non-compliance of
    terms of the arbitration agreement. What needs to be considered,
    therefore, is whether there was undue delay on the part of the MCGM
    in objecting to what it alleges to be non-compliance of the arbitration
    agreement, resulting in waiver of rights.
57. In this context, it has been submitted by the learned Senior Counsel
    appearing for the MCGM that as per Section 4, waiver may not
    attract in case an objection is made to non-compliance of terms
    of the agreement ‘within the time limit provided’ for raising such
550                                                          [2026] 3 S.C.R.

                               Supreme Court Reports


       objection. He contends that under Section 16(2) a plea that the
       arbitral tribunal does not have jurisdiction may be raised at any time
       prior to submission of statement of defence, which the MCGM has
       done in the present case. Also, as per the said provision, a party
       shall not be precluded from raising such a plea, merely because he
       has appointed, or participated in the appointment of, an arbitrator.
58. The facts of this case do not reveal a situation where the MCGM has,
    under protest, participated in the appointment of the third arbitrator. In
    fact, the third arbitrator was appointed by the Co-Arbitrators appointed
    by the parties. Be that as it may, it cannot be said that the challenge
    to jurisdiction of the Arbitral Tribunal under Section 16 was belated;
    it was rather filed at the appropriate stage, i.e., prior to filing of the
    statement of defence, which is as per the timeline as prescribed in
    Section 16(2) of the 1996 Act.
59. A co-ordinate bench of this Court, in the context of ineligibility
    of the arbitrator under Section 12 of the 1996 Act, in Hindustan
    Construction Co. Ltd. v. Bihar Rajya Pul Nirman Nigam Ltd.,3
    discussed the concept of waiver, acquiescence and estoppel under
    the 1996 Act. The relevant portion of the said judgement is quoted
    herein for reference:
            “13.1. Waiver is a foundational principle of arbitration,
            rooted in party autonomy and fairness in conduct.
            Arbitration, being adversarial in nature, inevitably results
            in a winning and a losing side. The legislative rationale in
            codifying waiver is to ensure that parties do not secure a
            second bite at the cherry after an unfavourable outcome.
            Parties are not permitted to sleep over their rights. This
            statutory policy is in harmony with the scheme of minimal
            judicial intervention, where the grounds for interference
            with an arbitral award are narrow, and waiver operates
            as a significant bar to belated objections.
            13.2. Though waiver, acquiescence, and estoppel are
            often discussed together in arbitral jurisprudence, they
            occupy distinct conceptual spaces. Waiver is the intentional
            relinquishment of a known right; acquiescence arises from
            passive acceptance or delay; and estoppel precludes a


3   2025 SCC OnLine SC 2578.
[2026] 3 S.C.R.                                                              551

                 Municipal Corporation of Greater Mumbai v.
                   M/s R.V. Anderson Associates Limited

            party from resiling from a representation on which the
            other has relied. The Act, however, incorporates only the
            doctrine of waiver - presuming parties to be conscious
            of their conduct and its consequences. The Act elevates
            silence to waiver by importing an element of intent, thereby
            preventing parties from approbating and reprobating.
            A party who has actively participated or consented to
            continuation of the proceedings cannot later challenge
            the same process merely because the result is adverse.
            The legislative design thus discourages tactical objections
            and multiplicity of proceedings.”
60. Additionally, this Court in Quippo Construction Equipment Ltd. v.
    Janardan Nirman (P) Ltd.,4 has relied upon the judgement of this
    Court in Narayan Prasad Lohia v. Nikunj Kumar Lohia,5 where
    the Court held that in case a party is making a challenge to the
    composition of the arbitral tribunal, the challenge must be made
    within the timeline as prescribed under Section 16 of the 1996 Act,
    i.e., prior to filing of the statement of defence, otherwise the waiver
    under Section 4 shall attract. Relevant portion of the judgement in
    Narayan Prasad Lohia (Supra) is quoted herein for reference:
            “16. It has been held by a Constitution Bench of this Court,
            in the case of Konkan Rly. Corpn. Ltd. v. Rani Construction
            (P) Ltd. [(2002) 2 SCC 388] that Section 16 enables the
            Arbitral Tribunal to rule on its own jurisdiction. It has been
            held that under Section 16 the Arbitral Tribunal can rule on
            any objection with respect to existence or validity of the
            arbitration agreement. It is held that the Arbitral Tribunal’s
            authority under Section 16, is not confined to the width of
            its jurisdiction but goes also to the root of its jurisdiction.
            Not only this decision is binding on this Court, but we are
            in respectful agreement with the same. Thus it is no longer
            open to contend that, under Section 16, a party cannot
            challenge the composition of the Arbitral Tribunal before
            the Arbitral Tribunal itself. Such a challenge must be taken,
            under Section 16(2), not later than the submission of the



4   (2020) 18 SCC 277
5   (2002) 3 SCC 572.
552                                                        [2026] 3 S.C.R.

                         Supreme Court Reports


          statement of defence. Section 16(2) makes it clear that
          such a challenge can be taken even though the party may
          have participated in the appointment of the arbitrator and/
          or may have himself appointed the arbitrator. Needless to
          state a party would be free, if it so chooses, not to raise
          such a challenge. Thus a conjoint reading of Sections
          10 and 16 shows that an objection to the composition of
          the Arbitral Tribunal is a matter which is derogable. It is
          derogable because a party is free not to object within the
          time prescribed in Section 16(2). If a party chooses not to
          so object there will be a deemed waiver under Section 4.
          Thus, we are unable to accept the submission that Section
          10 is a non-derogable provision. In our view Section 10
          has to be read along with Section 16 and is, therefore, a
          derogable provision.”
61. From the above judgements, it is clear that statutory waiver under
    Section 4 of the 1996 Act would attract in case an objection under
    Section 16 challenging the composition of tribunal and lack of
    jurisdiction is not filed prior to the time-limit as prescribed under
    Section 16(2). In the present case, the application under Section
    16 has been filed within the said time-limit. Therefore, it cannot be
    said that the MCGM is completely precluded from raising a challenge
    of this nature. As such, statutory waiver under Section 4 does not
    attract in the present case since a timely challenge to the jurisdiction
    of the Arbitral Tribunal has been made by the MCGM.
62. However, upon making such a challenge by a party, while adjudicating
    the application under Section 16 on merits by the Arbitral Tribunal,
    or examining its rejection at the stage of Section 34 followed by
    Section 37, the prior conduct of the party certainly becomes a relevant
    consideration to decipher its understanding of the contractual scheme.
    This is especially so, when the jurisdictional challenge due to improper
    composition of the Arbitral Tribunal is made on the ground of non-
    compliance of the arbitration clause. In such a case, the conduct of
    the party right from the stage of invocation of arbitration becomes a
    relevant consideration. While examining the alleged departure from
    the contractual scheme, acquiescence by the party in its conduct, its
    actions pursuant to the contractual terms and how it has understood
    and acted as per the terms of the contract, are all crucial aid in
    comprehending the contractual scheme.
[2026] 3 S.C.R.                                                        553

              Municipal Corporation of Greater Mumbai v.
                M/s R.V. Anderson Associates Limited

63. In the facts of this case, beyond 30 days from the date of appointment
    of the second Arbitrator, i.e. 07.10.2005, the MCGM agreed to
    attempt mediation / conciliation by its letter dated 07.01.2006 and
    then informed the Co-Arbitrators about there being no mediation /
    conciliation by its letter dated 15.12.2006. MCGM passively sat idle
    while three different persons were appointed as the Presiding Arbitrator
    under Clause 8.3(b) of the Agreement by the Co-Arbitrators, without
    any demur. Even when the Co-Arbitrators in their communication
    marked to parties discussed about appointing the third arbitrator
    and the Respondent requested them to appoint the third arbitrator,
    there was no objection or demur from MCGM about the alleged non-
    compliance of the terms of the arbitration agreement. The MCGM,
    until they raised their objection after the first preliminary meeting of
    the Arbitral Tribunal, had never come up with a plea that after expiry
    of thirty days from the date of appointment of Mr. Upasani, the Co-
    Arbitrators had become forum non conveniens and therefore they
    had absolutely no power to appoint the third arbitrator. Even though
    we have found above that the interpretation by the Tribunal and High
    Court that the appointment of the third arbitrator by Secretary General,
    ICSID was not a requirement under the arbitration agreement, but
    rather an enabling clause triggered upon a request being made
    by either party before the ICSID, we find that if the conduct of the
    Appellant is examined, it is clear that the Appellant never interpreted
    the contract in the manner which they are suggesting now.
64. We have reached this conclusion in the peculiar facts and
    circumstances of this case, where it is apparent that merely filing the
    application under Section 16 could not regularize the conduct of the
    Respondent and its acquiescence to the power of appointment of the
    third arbitrator being exercised by the Co-Arbitrators not only once,
    but thrice. We are constrained to reach this conclusion, primarily
    because, Justice Dhanuka (Retd.) was appointed as the Presiding
    Arbitrator by the Co-Arbitrators on 30.04.2007; even if MCGM’s
    argument that the Co-Arbitrators had become forum non conveniens,
    is assumed to be corrected, this was the first time an objection to
    non-compliance of terms of the arbitration agreement should have
    been raised. Yet, it was only after the subsequent appointment of
    Mr. John Savage, his resignation and the later appointment of Mr.
    Anwarul Haque and the preliminary meeting of the Tribunal in the
    year 2009 that the objection to composition of the Arbitral Tribunal
    was made for the first time.
554                                                       [2026] 3 S.C.R.

                        Supreme Court Reports


65. Neither party has approached the ICSID and triggered the enabling
    clause by fulfilling the condition precedent of making a request for
    appointment. Although there was extensive communication between
    the parties and the Co-Arbitrators, the MCGM did not point out from
    the very beginning that the Respondent must approach the ICSID.
    In such circumstances, the Appellant cannot now turn around and
    say, that was the only method for appointment.
66. In the present case, the MCGM was completely aware about the
    non-compliance of a contractual requirement under the arbitration
    agreement which it alleges. It proceeded with the arbitration process
    without any demur, agreed to keep the arbitration proceedings in
    abeyance to pursue other methods of dispute resolution (mediation /
    conciliation), and did not object to such non-compliance on three
    different occasions when such alleged non-compliance took place.
    In such a case, filing of an application under Section 16 of the 1996
    Act cannot regularize or condone its conduct and such conduct is a
    relevant consideration to decipher its understanding of the contractual
    terms while deciding the Section 16 application on merits by the
    Tribunal even in the absence of statutory waiver under Section 4
    being attracted.
67. We say so because the subsequent conduct of the parties serves
    as a powerful practical tool to understand their contractual intent.
    Reliance on a party’s original understanding of obligations under
    a contract as well as their actions prevents a party from later on
    adopting a legalistic interpretation which supports their case in
    stark contradiction of how they actually operated on the ground. In
    the present case, even though the MCGM argues with vehemence
    that the Co-Arbitrators had no power to appoint the third arbitrator,
    the admitted case is that neither party triggered the contingency by
    approaching the ICSID. Additionally, the MCGM was put to notice
    by the Co-Arbitrators and the Respondent about the appointment of
    the third arbitrator, not only once, but on three different occasions.
    In response to communication where the Respondent has requested
    the Co-Arbitrators to appoint the third arbitrator, the MCGM has not
    taken a view that the Secretary General, ICSID is the only authority
    who could appoint the third arbitrator. The MCGM seems to have
    conveniently turned a blind eye to the communication which was
    marked to it and then at the stage prior to filing of the statement of
[2026] 3 S.C.R.                                                         555

                 Municipal Corporation of Greater Mumbai v.
                   M/s R.V. Anderson Associates Limited

     defence, for the first time, raised this issue which relates to alleged
     non-compliance of terms of the agreement in respect of appointment
     of arbitrators. In such a fact situation, no party can be permitted to
     take the dispute resolution process, the nominee arbitrators or the
     opposite party for a ride. A party cannot keep a ‘jurisdictional ace’ up
     their sleeve and then claim that filing of the jurisdictional challenge
     under Section 16 would go back in time and wipe out the past
     conduct and acquiescence of the party which would clearly evince
     how the contractual terms were viewed by the parties. If the same
     is permitted, it will erode the basic principles of alternative dispute
     resolution and ethos of arbitration.
68. In view of the above findings, the learned Single Judge in the Section
    34 application and the Division Bench in the Section 37 appeal were
    completely justified to reject interference and refuse to set aside the
    arbitral award. In light of the evidence which goes to show the manner
    in which the contract was understood and acted upon by the parties,
    the view taken by the Arbitral Tribunal is certainly a plausible view
    and no reasonable ground is made out for setting aside the arbitral
    award under Section 34 of the 1996 Act. As such, we do not find
    any merit in these appeals, they are accordingly dismissed. In the
    facts, there shall be no order as to cost. All pending applications
    shall be treated as disposed of.


     Result of the case: Appeals Dismissed.




     †
         Headnotes prepared by: Ankit Gyan


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