An analysis of Section 34 judicial review, examining when unpleaded claim refinements, arbitrary damages, internal evidentiary paradoxes, and contractual interest bars cross into patent illegality.
Judicial review of arbitral awards under Section 34 of the Arbitration and Conciliation Act, 1996[1], operates on the bedrock principle of minimal supervisory intervention. However, the doctrine of “patent illegality” under Section 34(2A) serves as a critical constitutional safety valve when tribunals exceed their jurisdictional mandate. Recent arbitral jurisprudence brings into sharp focus several profound questions of law: the threshold between a “permissible refinement” of pleadings and a procedural ambush, the legal misconduct of equating a claim to proof, the impact of internal arbitral contradictions, and the strict boundaries of an arbitrator’s power to award interest in the face of an express contractual bar.
I. The Jurisdictional Boundary of Unpleaded Claims: “Refinement” vs. New Cause of Action
A fundamental question of law arises when an arbitral tribunal allows a claimant to substantially alter the factual and legal basis of a claim during final arguments. In standard construction disputes, a claim for “loss of overheads” (compensating for indirect head-office expenses during prolonged delays calculated via formulas) is factually distinct from a “mobilisation and demobilisation” claim (compensating for the direct physical costs of transporting machinery and labour).
When a tribunal finds that a pleaded overhead claim lacks any supporting cost records or ledgers, permitting the claimant to pivot to an unpleaded mobilisation claim under the guise of a “permissible refinement” violates the core tenets of procedural fairness. It is a settled principle of law that parties are bound by their pleadings. Allowing a new cause of action at the eleventh hour deprives the defending party of the opportunity to demand specific invoices, audit transport receipts, or cross-examine witnesses on actual deployment costs. Such an approach bypasses the statutory framework for amending pleadings and constitutes a violation of the right to present a case, rendering the award susceptible to challenge.
II. Arbitrary Damages and the Evidentiary Threshold
A critical question of law is whether an arbitrator can award unliquidated damages based on a “conservative” percentage estimate when explicitly acknowledging the absence of a stated figure, formula, or precise evidentiary yardstick.
The Supreme Court of India conclusively answered this in State of Rajasthan v. Ferro Concrete Constr. (P) Ltd.[2] The Court held that awarding damages based on notional formulas without actual supporting evidence of loss is legally unsustainable. The Court categorically ruled:
“In a reasoned award if the claim of a contractor is equated to proof of the claim, then it is obviously a legal misconduct and an error apparent on the face of the award.”
The Court further clarified that while the quantum of evidence is within the arbitrator’s domain, making an award “merely on the basis of the claim statement without anything more... is wholly illegal and beyond the jurisdiction of the arbitrator.” Therefore, when a tribunal arbitrarily assesses damages at a flat percentage rate (e.g., 2% of the certified work value) without demanding strict proof of actual expenditure, the tribunal commits a jurisdictional error that constitutes patent illegality.
III. The Evidentiary Paradox as Patent Illegality
Patent illegality is further triggered by severe internal contradictions within the arbitral award itself. A profound question of law emerges when a tribunal relies upon a document for one claim while explicitly rejecting its evidentiary value for another.
For instance, if a tribunal rejects an email as a “unilateral communication” that “cannot, without more, be treated as a binding admission” to deny a claim for physical materials, it establishes the document’s legal incompetence. Relying on that exact same unilateral email to subsequently award millions in compensation under a different claim creates an irreconcilable evidentiary paradox.
In Ssangyong Eng’g & Constr. Co. v. NHAI[3], the Supreme Court held that “a finding based on no evidence at all... would be perverse and liable to be set aside on the ground of patent illegality.” This was reinforced in Delhi Airport Metro Express (P) Ltd. v. DMRC[4], which established that patent illegality occurs when an arbitrator takes a view “which no fair-minded or reasonable person would” or reaches conclusions “based on no evidence.” Treating a single piece of evidence as simultaneously void and legally binding defies logic and renders the resulting finding perverse on its face.
IV. Contractual Bars on Interest vs. Arbitral Jurisdiction
The final question of law addresses the limits of an arbitral tribunal’s power under Section 31(7)(a) of the Act to award interest when the contract contains an absolute waiver. Under Section 28(3), a tribunal is strictly mandated to decide disputes in accordance with the terms of the contract.
When a contract explicitly stipulates that “No interest shall be payable... on any money due to the Contractor against interim or final bills,” the prohibition attaches to the character of the funds themselves. A tribunal commits a manifest error of law by artificially dividing this absolute bar temporally, ruling that it only prohibits “pre-reference interest” but permits pendente lite and future interest.
Such judicial rewriting of a contract conflicts with the Supreme Court’s mandate in Garg Builders v. Bharat Heavy Elec. Ltd.[5], which held that broad exclusionary clauses prohibiting interest on “any moneys due” act as a blanket bar on an arbitrator awarding any interest, including pendente lite interest. Erroneously distinguishing this binding precedent by relying on narrower rulings (such as ONGC Ltd. v. G&T Beckfield Drilling Servs. (P) Ltd.[6], which dealt solely with limited “delayed payment” clauses) constitutes an illicit expansion of arbitral power. An arbitrator, acting merely as a creature of the contract, cannot utilize general statutory powers to resurrect a financial entitlement that the parties explicitly and voluntarily bargained away.
The adjudication of these legal questions remains vital for preserving the delicate balance between party autonomy and the rule of law. When arbitral tribunals bypass pleadings, substitute assumptions for evidence, issue internally contradictory findings, or rewrite clear contractual prohibitions, courts must exercise their mandate under Section 34 to correct these patent illegalities and uphold the integrity of the arbitral framework.
Endnotes
[1] Arbitration and Conciliation Act, 1996, § 34, No. 26, Acts of Parliament, 1996 (India).
[2] State of Rajasthan v. Ferro Concrete Constr. (P) Ltd., (2009) 12 SCC 1 (India).
[3] Ssangyong Eng’g & Constr. Co. v. NHAI, (2019) 15 SCC 131 (India).
[4] Delhi Airport Metro Express (P) Ltd. v. DMRC, (2022) 1 SCC 131 (India).
[5] Garg Builders v. Bharat Heavy Elec. Ltd., (2022) 11 SCC 697 (India).
[6] ONGC Ltd. v. G&T Beckfield Drilling Servs. (P) Ltd., 2025 SCC OnLine SC 1888 (India).
