Is an Arbitration Award Final? Can It Be Appealed?

Yes, an arbitration award in India is final and binding on the parties. Section 35 of the Arbitration and Conciliation Act says so in terms. But "final" does not mean it can never be touched. A party can apply to a court to set the award aside under Section 34, on limited grounds, within a strict time limit. The court's decision on that application can be appealed under Section 37, and from there a special leave petition can be filed in the Supreme Court. What a party cannot do is appeal an award simply because it disagrees with how the arbitrator weighed the evidence or read the contract.

This guide explains what finality means, what the challenge route covers, and the narrow ways in which courts can now modify awards. In short: there is no appeal on the merits; challenges succeed only for real defects such as a biased tribunal, lack of a fair hearing, decisions outside the dispute, conflict with public policy, or, for domestic awards, patent illegality; and since 2025 courts can correct some errors and adjust post-award interest, but cannot rewrite the award.

For the winner, finality is the main attraction of arbitration. For the loser, it means the arbitration itself is where the case must be won.

The short answer

An award is binding from the day it is made. Once the time to challenge it has passed without a challenge, or a challenge has been dismissed, or no stay has been granted, it can be enforced like a court decree under Section 36. There is no appeal on the merits to any court.

The only way to undo an award is an application under Section 34. The grounds are listed in the section: a party's incapacity; an invalid arbitration agreement; lack of proper notice or inability to present one's case; decisions beyond the scope of the reference; improper composition of the tribunal or procedure; non-arbitrable subject matter; conflict with the public policy of India; and, for domestic awards only, patent illegality appearing on the face of the award. Explanation 2 to Section 34(2)(b) says expressly that the public policy ground does not allow a review on the merits.

The ladder of challenges

What courts will not do

Indian courts have been told repeatedly, by the Supreme Court, to respect the finality of awards. In Associate Builders v DDA (2014) and Ssangyong Engineering v NHAI (2019), the Court set out the limits. A court will not re-appreciate evidence. It will not interfere because it would have read the contract differently, if the arbitrator's reading is a possible one. It will not treat a mere error of law as a ground for interference. And it will not set aside an award because the reasoning is brief, if the reasons are intelligible.

The 2026 decisions continued this line. In MPRDC v Jabalpur Corridor (May 2026), the Court said a tribunal's reasoned view ordinarily stands unless palpably erroneous, and that an issue decided with finality cannot be reopened under the guise of public policy. In Jan De Nul Dredging v Tuticorin Port Trust (January 2026), it held that a Section 37 appellate court cannot go beyond the Section 34 grounds. In Saisudhir Energy v NTPC Vidyut Vyapar Nigam (January 2026), it set aside a Section 37 court's re-working of compensation.

When challenges do succeed

The power to modify: Gayatri Balasamy (2025)

For years, Indian courts held that under Section 34 they could only set aside an award, wholly or partly, and never modify it. In Gayatri Balasamy v ISG Novasoft Technologies (April 2025), a five-judge bench of the Supreme Court held, by majority, that courts do have a limited power to modify awards.

The Court identified the situations: where the invalid part of an award can be severed from the valid part; to correct clerical, computational or typographical errors apparent on the face of the record; and, in some circumstances, to modify post-award interest. It also said the Supreme Court could use its special power under Article 142 to modify an award in exceptional cases, but sparingly and only to do complete justice.

What courts still cannot do is substitute their own view on the merits, re-calculate damages from scratch, or re-decide the dispute. In Union of India v Larsen & Toubro (February 2026), the Supreme Court applied this, confirming that a court may modify the post-award interest rate where facts justify it. In Gujarat Water Supply and Sewerage Board v Saryu Plastics (May 2026), it held that changing "simple interest" to "compound interest" was not a permissible correction under Section 33.

If you have lost: deciding whether to challenge

If you have won: protecting finality

For the award holder, the finality of the award is the reward for winning. To protect it, watch for a Section 34 petition and check whether it was filed in time and in the right court. Oppose any stay, or insist on full deposit. If no stay is granted, start enforcement. If a deposit is made, apply to withdraw it against security.

Do not be alarmed by a long list of grounds in a Section 34 petition. Courts see many petitions that re-argue facts, and dismiss them. Focus your reply on showing that the tribunal considered the evidence and gave reasons, and that the losing side had a full and fair hearing. See defend your award.

Patent illegality explained

Section 34(2A), added in 2015, allows a domestic award to be set aside if the court finds that it is "vitiated by patent illegality appearing on the face of the award". The proviso says an award cannot be set aside merely on the ground of an erroneous application of the law or by re-appreciation of evidence.

The Supreme Court in Ssangyong (2019) explained that patent illegality covers things like an award that contradicts a provision of the Act or the substantive law of India, an award without any reasons, an award where the tribunal has decided on something outside the contract, or where the arbitrator's view is not even a possible view. A finding based on no evidence, or one ignoring vital evidence, can also fall within it. An error that requires detailed analysis of the evidence to detect is not "on the face of the award".

This ground does not apply to international commercial arbitrations seated in India, which can be challenged only on the grounds in Section 34(2). That difference reflects the policy of giving greater finality to international awards.

Public policy: narrower than it sounds

"Public policy of India" sounds broad, but Explanation 1 to Section 34(2)(b) limits it to three things: the award was induced or affected by fraud or corruption, or was in violation of the confidentiality or admissibility rules for conciliation; it is in contravention of the fundamental policy of Indian law; or it is in conflict with the most basic notions of morality or justice. Explanation 2 says the test for contravention of fundamental policy does not entail a review on the merits.

"Fundamental policy" has been read to include basic principles such as the need for a judicial approach, adherence to natural justice, and not disregarding orders of superior courts. A simple disagreement with how the tribunal applied a statute is not enough. "Most basic notions of morality or justice" is reserved for awards that shock the conscience of the court.

Settlement after the award

Many awards are not enforced in full, because the parties settle afterwards. The award holder may accept a discount for prompt payment, or a payment plan, rather than face the time and cost of a Section 34 challenge and enforcement. The losing party may prefer certainty over the risk of a deposit order and post-award interest.

A settlement after the award should be recorded in writing, stating the amount, the dates, and that the award will be treated as satisfied on payment. If a Section 34 petition is pending, it should be withdrawn, and any deposit released as agreed. If execution has been filed, it should be closed by recording satisfaction. Courts can record settlements and pass orders in their terms.

Foreign-seated awards and finality

For awards made outside India, finality works differently. They cannot be challenged in Indian courts at all; only the courts of the seat can set them aside, under that country's law. In India, a foreign award can only be resisted at the enforcement stage, on the grounds in Section 48, which mirror the New York Convention. Indian courts do not review the merits of foreign awards. In Nagaraj Mylandla v PI Opportunities Fund-I (March 2026), the Supreme Court held that findings already made by the seat court on a challenge cannot be reopened before the Indian enforcement court.

Additional awards and omitted claims

Sometimes an award simply fails to deal with a claim that was argued: a counter-claim not decided, an interest claim overlooked, or a head of damages not mentioned. Section 33(4) allows a party, within 30 days of receiving the award, to ask the tribunal to make an additional award on claims presented in the proceedings but omitted from the award. The tribunal must make the additional award within 60 days if it considers the request justified.

This is better than a Section 34 challenge for an omission, because it gets a decision on the missing claim from the tribunal itself. A Section 34 court cannot decide the omitted claim; it can only set aside the award, wholly or partly. If you notice an omission, act within the 30 days. Remember that after NHAI v T. Younis (June 2026), the Section 34 period runs from the disposal of a Section 33 request, so a genuine request does not cost you time to challenge.

Awards against non-parties and wrong parties

An award binds only the parties to the arbitration agreement and those claiming through them. Awards are sometimes passed against directors, family members, group companies or guarantors who never signed an arbitration agreement. Such parts of an award are open to challenge on the ground that there was no arbitration agreement with them.

After Cox and Kings v SAP India (2023), a non-signatory may be bound in some cases under the group of companies doctrine, if the evidence shows that all parties intended it to be bound. But the tribunal must find this on evidence; it cannot simply name a non-signatory in the award. If you have been named in an award without having signed the agreement, your challenge should focus on this point.

Interest in awards: a frequent target

Interest often makes up a large part of an award, and it is one of the parts most commonly challenged. Section 31(7)(a) lets the tribunal award interest from the date the cause of action arose to the date of the award, at a reasonable rate, "unless otherwise agreed by the parties". So if the contract bars interest, the tribunal cannot award it for that period, as the Supreme Court confirmed in Union of India v Larsen & Toubro (February 2026).

Section 31(7)(b) deals with post-award interest: unless the award otherwise directs, the sum awarded carries interest at 2% higher than the current rate of interest prevailing on the date of the award, until payment. The L&T decision held that a contractual bar on pre-award interest does not extend to post-award interest. After Gayatri Balasamy (2025), courts may modify post-award interest in appropriate cases. If the interest in your award is plainly contrary to the contract or wrongly calculated, a challenge limited to that part has a better chance than a challenge to the whole award.