Whether an arbitral mandate validly subsisted when the award was passed, given that the arbitrator unilaterally extended timelines without explicit written consent.
Whether arbitral proceedings complied with the principles of natural justice when an award was passed after a party failed to attend a scheduled hearing.
Whether a Commercial Court has the jurisdiction under Section 33(1)(a) of the Arbitration and Conciliation Act, 1996, to substitute “simple interest” with “compound interest” for the pendente lite period under the guise of correcting a clerical or typographical error.
Appeals disposed of. The Supreme Court upheld the validity of the arbitral mandate and the adherence to natural justice. However, it quashed the orders of the High Court and Commercial Court that converted the interest type, ruling that such a modification exceeded the scope of Section 33(1)(a). The respondent was held entitled only to simple interest at 21.675% per annum for the pendente lite period.
1. Factual Background
The appellant, Gujarat Water Supply and Sewerage Board (“the Board”), awarded multiple rate contracts for PVC pipes to the respondent, Saryu Plastics Pvt. Ltd. (“the Company”), between 1998 and 2002. An internal audit conducted for the year 1999–2000 exposed irregularities and excess payments to suppliers. Following a comprehensive audit report in June 2002, the Board blacklisted the Company in August 2003. After a decade-long delay, the Company requested an arbitrator. On April 3, 2012, both parties executed an Arbitration Agreement appointing Mr. K.J. Wadher as the Sole Arbitrator, stipulating a strict six-month timeline to conclude proceedings.
2. Timeline of Arbitral Extensions and Conduct
The arbitrator’s six-month mandate expired on October 18, 2012. The chronological progression highlights a series of extensions and persistent delays:
- Consensual Extensions: The parties mutually consented to extend the mandate up to September 30, 2014. Throughout 2012 and 2013, the Board routinely failed to file point-wise replies to the Company’s Statement of Claim (SOC) and missed multiple scheduled meetings.
- Unilateral Extensions: On September 30, 2014, March 27, 2015, and June 23, 2015, the Arbitrator unilaterally extended the timeline to parse through thousands of pages of newly submitted documents. The Board did not object to these actions and later agreed to a brief extension up to September 30, 2015.
- The Final Hearing & Award: The arbitrator requested a further extension to November 15, 2015, and scheduled a hearing for October 15, 2015. On October 14, the Board sent an email stating it could not attend due to “pre-engagements,” without explicitly objecting to the mandate or requesting an alternative date. Treating the matter as closed, the arbitrator passed the Arbitral Award on October 27, 2015, awarding the Company ₹1.01 crores with simple interest at 21.675% per annum for the pendente lite period, and compound interest for the post-award period. The award was dispatched via courier on October 27 and received by the Board on October 30.
3. Lower Institutional Proceedings
On December 7, 2015, the Company filed an application under Section 33 of the Act, claiming the arbitrator inadvertently wrote “simple interest” instead of “compound interest” for the pendente lite period. The arbitrator declined to rule on it because the Board had already filed a Section 34 challenge before the Commercial Court.
On September 25, 2018, the Commercial Court allowed a review petition filed by the Company, modifying the arbitral award to grant compound interest for the pendente lite period. This modification exponentially escalated the Board’s financial liability from approximately ₹30.38 crores to ₹144.93 crores. On October 17, 2018, the Commercial Court rejected the Board’s Section 34 application. The High Court of Gujarat subsequently dismissed the Board’s appeals on November 11, 2022, prompting this appeal to the Supreme Court.
4. Key Legal Issues & Court’s Analysis
A. Subsistence of Arbitral Mandate & Principle of Estoppel
The Board argued that the arbitrator’s mandate expired on September 30, 2015, making the October 27 award invalid. The Supreme Court observed that because the case predated the introduction of statutory timelines under Section 29A (amended with retrospective effect from October 23, 2015), there was no strict statutory form required for extensions.
The Court noted that the Board repeatedly participated in proceedings after unilateral extensions and failed to object to the arbitrator’s mandate in its October 14, 2015, email. By doing so, the Board tacitly acquiesced to the extensions. Under principles of party autonomy, a party cannot participate in proceedings, remain silent on an alleged invalidity, and then challenge the mandate only after an adverse award is passed. The Board was estopped from raising this objection.
B. Compliance with Natural Justice
The Board claimed it was denied an effective opportunity to be heard. The Court rejected this, highlighting that the proceedings spanned over three and a half years (2012–2015). The delay was entirely attributable to the Board’s dilatoriness, missed meetings, and failure to provide timely factual disclosures. When a party is given ample opportunities but chooses not to appear at a final hearing without seeking an adjournment, the arbitrator is fully justified in closing the matter and passing the award.
C. Scope of Section 33(1)(a) and Interest Modification
The critical legal turning point centered on the Commercial Court’s modification of the interest type. The Supreme Court clarified that Section 33(1)(a) of the Act strictly limits an arbitral tribunal’s (or reviewing court’s) power to correcting computational, clerical, or typographical errors.
“The provision is neither designed nor intended to serve as a vehicle for the substantive modification of an Award or the review of the merits of the findings recorded therein.”
The choice between simple and compound interest represents a deliberate, substantive evaluation of equities and merits by an arbitrator. It cannot be characterized as a slip of the pen or an arithmetical oversight. Consequently, the Commercial Court patently exceeded its jurisdiction by altering the nature of the interest, and its review power could not be used to bypass the structural limitations of Section 33.
5. Final Conclusions & Directives
The Supreme Court summarized its findings as follows:
- The arbitral mandate was validly subsisting at the time the award was generated.
- The award was dispatched on October 27, 2015, before the Board sent its post-facto objection email on October 28.
- The arbitral proceedings strictly adhered to the principles of natural justice.
- The Commercial Court committed a manifest legal error by substituting “compound interest” for “simple interest.”
The Supreme Court quashed and set aside the High Court’s judgment and the Commercial Court’s modification order. The original terms of the Arbitral Award were restored, making the Company entitled exclusively to simple interest at the rate of 21.675% for the pendente lite period. No order was made as to costs.
2026 INSC 552
Gujarat Water Supply And Sewerage Board V. Saryu Plastics Pvt. Ltd. (D.O.J. 26.05.2026)
