Quick answer: Under Section 33 of the Arbitration and Conciliation Act, 1996, a party may ask the tribunal to fix computation, clerical or typographical errors within 30 days of receiving the award. The tribunal cannot rewrite the merits. A formal Section 33 request also resets the three-month Section 34 clock, even if the tribunal rejects it.
A correction of arbitral award under Section 33 is a narrow but useful tool. Banks, NBFCs and businesses often spot a wrong total or a typing slip after the award arrives. However, two 2026 Supreme Court rulings now mark its limits and its effect on limitation.
What Section 33 allows: correction of arbitral award, interpretation and additional award
Section 33 gives parties three distinct requests. Each one runs on a tight clock.
- Correction (Section 33(1)(a)): a party may ask the tribunal to fix errors in computation, clerical or typographical errors, or similar errors. It must give notice to the other side.
- Interpretation (Section 33(1)(b)): a party may seek an interpretation of a specific point, but only if both parties agreed to allow it.
- Additional award (Section 33(4)): a party may ask the tribunal to decide claims it heard but left out of the award.
The tribunal also has its own power. Under Section 33(3), it may correct such errors on its own within 30 days from the date of the award. Moreover, Section 33(6) lets it extend time where necessary, and Section 33(7) applies the Section 31 form rules.
Key case law on Section 33
NHAI v. T. Younis (2026 INSC 616, 2 June 2026)
NHAI filed a Section 33(1)(a) application, and the tribunal dismissed it. The Karnataka High Court then held the application not maintainable. As a result, it treated NHAI’s Section 34 challenge as time-barred. A bench of Justices P.S. Narasimha and Alok Aradhe reversed that view. The Court held that Section 34(3) runs from disposal of the Section 33 request. It drew no line between requests that succeed, fail or are not maintainable. Parties therefore need not file a “protective” Section 34 petition. However, the Court warned that sham applications may attract exemplary costs. It distinguished Damani Construction (2007), where a party had sent only an informal letter seeking review.
Gujarat Water Supply and Sewerage Board v. Saryu Plastics (2026 LiveLaw (SC) 547)
Here, the award granted simple interest. The supplier later sought compound interest through Section 33. The Commercial Court substituted it, multiplying the liability several times. The Supreme Court set that aside. It held that switching simple interest to compound interest is a substantive change, not a clerical fix. In short, Section 33 is not a review.
Earlier rulings, including Ved Prakash Mithal (2018), USS Alliance (2023) and Geojit Financial Services v. Sandeep Gurav (2025 INSC 1021), had already linked the Section 34 clock to disposal of the Section 33 request.
Practical timeline and checklist
- Day 0: note the date you actually received the signed award.
- Within 30 days: file a formal, written Section 33 application. Do not rely on an email or letter seeking review.
- Serve the other party: the Act requires notice for every request.
- Stick to true errors: list each arithmetic, clerical or typing mistake and show the correct figure.
- Tribunal decides: it has 30 days for a correction and 60 days for an additional award, unless it extends time.
- Section 34 clock: count three months from the date of disposal of the request. Then diarise the 30-day condonable window as a backstop.
If the error goes to the merits, a Section 33 request will not help. Instead, you will need a challenge under Section 34. Our guide on how to challenge an arbitral award in India explains the grounds and deadlines. Where an award feeds into recovery suits or other disputes, our commercial litigation lawyers in Delhi NCR can coordinate both tracks.
FAQs
What is Section 33 of the Arbitration Act?
It lets a party ask the tribunal to correct errors, interpret a point (if parties agree), or issue an additional award on omitted claims.
What is the time limit for a Section 33 application?
You must file it within 30 days of receiving the award, unless the parties agreed on a different period.
Can an arbitrator change simple interest to compound interest under Section 33?
No. In Saryu Plastics (2026), the Supreme Court held that this is a substantive modification, which Section 33 does not permit.
Does a Section 33 application extend the time to file a Section 34 petition?
Yes. The three-month period runs from the date the tribunal disposes of the Section 33 request.
What happens if the tribunal rejects the Section 33 application?
The extension still applies. NHAI v. T. Younis (2026) holds that the outcome or maintainability of the request does not matter.
What is an additional arbitral award?
It is a further award on claims the parties presented but the tribunal omitted. The tribunal must make it within 60 days of the request.
Lex Pleaders advises banks, NBFCs and businesses on arbitral awards, post-award corrections and Section 34 challenges. As a law firm in Delhi NCR, we act quickly when deadlines are short. Write to us at lexpleadersindia@gmail.com to discuss your matter.
Disclaimer: This article offers general information only and does not constitute legal advice.