This case involves a dispute between M/S Interstate Construction (Appellant) and National Projects Construction Corporation Limited (NPCC) (Respondent) concerning two work orders for the Ramagundam Super Thermal Power Project. A contract agreement between the parties contained an arbitration clause for dispute resolution. The appellant invoked arbitration in 1993, and over the years, there were changes in the appointed arbitrator. The final arbitral tribunal pronounced its award on 28 October 2020, which included directions for the payment of interest in paragraph 587.
The Respondent (NPCC) challenged this award under Section 34 of the Arbitration and Conciliation Act, 1996 (“the 1996 Act”) before the Single Bench of the High Court. The Single Judge partly allowed the petition by setting aside the award with regard to future interest exceeding 9% per annum. Subsequently, the Respondent preferred an appeal under Section 37 of the 1996 Act before the Division Bench of the High Court8. The challenge before the Division Bench was clarified to be restricted to the directions issued by the arbitral tribunal concerning the issue of interest, specifically against the directions in sub-paragraph 58(b)(i) and (ii) of the award. The Division Bench of the High Court allowed the appeal, setting aside the directions contained in paragraph 58(b) of the arbitral award214. The appellant then brought this appeal to the Supreme Court.
Laws Involved. The core of this judgment revolves around the interpretation and application of:
The Arbitration and Conciliation Act, 1996.
Section 34: Pertains to applications for setting aside arbitral awards.
Section 37: Governs appeals from orders made under Section 34.
Section 31(7): This crucial section deals with the power of an arbitral tribunal to award interest. The judgment extensively discusses both the pre-substitution (prior to 23.10.2015) and post-substitution positions of this provision, particularly sub-sections (a) and (b).
Reasoning. The Supreme Court primarily focused on the Division Bench’s erroneous interpretation of Section 31(7) of the 1996 Act concerning an arbitrator’s power to award interest.
The Division Bench had incorrectly held that Section 31(7) only provided for two periods of interest. It concluded that interest could be awarded for the period between the date the cause of action arose and the date of the award, and then from the date of the award till the date of payment. The Supreme Court found this view to be “fallacious” and an “incorrect interpretation of Section 37(1)(a) of the 1996 Act”.
The Supreme Court clarified that the power of an arbitrator to grant interest is a statutory recognition under Section 31(7)212. This provision allows the arbitral tribunal to include in the sum awarded “interest at such rate as it deems reasonable, on the whole or any part of the money, for the whole or any part of the period between the date on which the cause of action arose and the date on which the award is made”.
The Court reiterated the established legal position, drawing upon its previous decisions in Sayeed Ahmed and Company10… and Pam Developments Private Limited. These precedents consistently hold that the arbitrator has the power to grant pre-reference interest, pendente lite interest, and post-award interest under Section 31(7).
The Court explained that while the 1940 Arbitration Act had a “vacuum” regarding pre-reference interest, the 1996 Act, specifically Section 31(7)(a), statutorily recognises this power. The post-2015 substitution to Section 31(7)(a) and (b) further refines the period and rate of interest but does not diminish the arbitrator’s power to award interest for these distinct periods..
The Supreme Court concluded that the Division Bench had fallen in error by holding that the arbitral tribunal had no jurisdiction to award interest for the different periods, thereby committing an “illegality” in setting aside parts of the interest awarded.
Holding The Supreme Court allowed the appeal, thereby setting aside the impugned judgment and order dated 01.08.2023 passed by the Division Bench of the High Court of Delhi. This decision effectively restores the arbitral award pertaining to the interest components which the High Court had erroneously set aside.
M/S. Interstate Construction V. National Projects Construction Corporation Ltd.
Supreme Court: 2025 INSC 699: (DoJ 15-05-2025)




