I'll research this systematically across multiple angles — the intersection of contract termination acceptance, arbitration challenges, and the doctrines of estoppel, waiver, and acquiescence. Let me launch parallel research streams.
Now let me verify a few critical holdings before composing the final answer.
I now have comprehensive, verified findings across all four research streams. Let me compose the analysis.
Challenging Contract Termination in Arbitration After Acquiescence: Estoppel, Waiver, and the Survival of Arbitral Rights
I. The Short Answer
Yes — in most circumstances, a party can still challenge the termination in arbitration, even after accepting it, retrieving materials, submitting final bills, and raising no contemporaneous objection. However, the strength of such a challenge depends critically on the voluntariness of the party's conduct and the presence (or absence) of specific factors like protest, coercion, or express undertakings. The Supreme Court has developed a nuanced, fact-intensive framework that balances the doctrines of accord and satisfaction, estoppel, and waiver against the separability of the arbitration clause and the "ground realities" of commercial contracting.
II. Foundational Principle: The Arbitration Clause Survives Termination
The starting point is the separability doctrine: the arbitration clause is treated as an independent, collateral agreement that survives the termination of the main contract.
In Damodar Valley Corporation v. K.K. Kar, (1974) 1 SCC 141 (), the Supreme Court held:
"The question whether the termination was valid or not and whether damages are recoverable for such wrongful termination does not affect the arbitration clause, or the right of the respondent to invoke it for appointment of an arbitrator."
This means that a party's acceptance of termination does not, by itself, destroy the right to arbitrate. Claims arising from alleged wrongful termination — damages, compensation for work done, recovery of materials — remain arbitrable because the arbitration agreement is a separate juridical entity from the substantive contract.
III. The Boghara Polyfab Framework: The Governing Test
The landmark judgment in National Insurance Co. Ltd v. Boghara Polyfab Pvt. Ltd., (2009) 1 SCC 267 () established the authoritative framework for determining when post-termination or post-settlement conduct bars subsequent claims. The court laid down four illustrative scenarios:
The court also articulated the critical "ground reality" principle: "A contractor who has made huge investments cannot afford not to take from the employer the amount under the bills" — practical economic compulsion must be distinguished from genuine voluntary acceptance.
IV. Applying the Framework: When Post-Termination Conduct Bars Claims (and When It Does Not)
A. Conduct That Does NOT Bar Subsequent Arbitration
1. Receipt of final payment without express undertaking against future claims
In Durga Charan Rautray v. State of Orissa, (2012) 12 SCC 513 (), the contractor received payment on the final bill without raising objections. The High Court held he could not initiate arbitration. The Supreme Court reversed, holding:
"The appellant, while accepting payment on the preparation of the final bill, did not undertake that he would not raise any further claims. As such… despite receipt of payment on the preparation of the final bill, it was still open to the appellant" to seek arbitration.
Key rule: Receipt of final payment without protest ≠ waiver of arbitration rights, absent an express undertaking against future claims.
2. Acceptance of final bill "under protest" or "without prejudice"
In R.L. Kalathia & Co v. State of Gujarat, (2011) 2 SCC 400 (), the contractor accepted the final bill amount but endorsed it "under protest." The Supreme Court laid down three principles:
- (i) Merely because a contractor issued a "No Due Certificate," genuine claims cannot be rejected solely on that ground.
- (ii) It is common that unless a discharge certificate is given in advance, payment of bills is generally delayed — courts must be alive to this ground reality.
- (iii) Even after execution of a full and final discharge voucher, if the party can establish entitlement to further amounts with adequate materials, acceptance of the final bill by mentioning "without prejudice" or issuing a "No Due Certificate" is NOT a bar.
3. No-claim certificate obtained as a condition precedent for payment
In Union of India v. Parmar Construction Company, AIR 2019 SC 5522 (), involving small railway contractors, the Supreme Court acknowledged:
"We cannot be oblivious of the ground realities that where a petty/small contractor has made investments from his available resources… and the railway establishments without any justification reduces the claim unilaterally and take a defence of the no claim certificate being furnished which… is furnished as a pre-condition for release of the payment."
Similarly, in M/S. Associated Construction v. Pawanhans Helicopters Pvt. Ltd., (2008) 16 SCC 128 (), where the contractor's contemporaneous letters documented coercion ("Please do not hold us to a ransom"), the NCC was held to have been extracted under economic duress.
4. Post-2015 position: Accord and satisfaction does not destroy the arbitration agreement
The most recent comprehensive analysis in SBI General Insurance Co. Ltd v. Krish Spinning, SC, 18 July 2024 () significantly developed the law:
- A dispute about "accord and satisfaction" does not attack the existence of the arbitration agreement — the arbitration agreement survives even after the contract is discharged by accord and satisfaction.
- Under Section 11(6A) of the Arbitration Act (post-2015 Amendment), the referral court's inquiry is limited to examining the existence of the arbitration agreement — not its validity or the merits of accord and satisfaction defences.
- The accord and satisfaction question should generally be left to the arbitral tribunal.
This represents a significant shift: even where the post-termination conduct might constitute genuine accord and satisfaction, the right to have that question adjudicated by an arbitrator is now better protected.
B. Conduct That DOES Bar Subsequent Claims
1. Voluntary NCC + full payment + no protest + bald plea of duress
In Union of India v. Master Construction Co, (2011) 12 SCC 349 (), the contractor furnished no-claim certificates, signed the final bill, received payment without grievance, had its bank guarantee released, and only then lodged further claims. The Supreme Court held:
"Mere allegation that no-claim certificates have been obtained under financial duress and coercion, without there being anything more to suggest that, does not lead to an arbitrable dispute."
Test: A bare, unsubstantiated plea of duress is insufficient. The party must produce prima facie material — contemporaneous correspondence, protests, evidence of unequal bargaining — to substantiate the allegation.
2. No-claim certificate + full payment + belated retraction
In ONGC Mangalore Petrochemicals v. ANS Constructions Ltd., (2018) 3 SCC 373 (), the contractor issued a No Dues/No Claim Certificate, received ₹20.34 crores in full final payment, and only 12 days later attempted to withdraw the certificate. The plea of duress was found:
"bereft of any details and particulars, and cannot be anything but a bald assertion."
Factors the court weighed: no protest at or near the time of signing; no evidence of precarious financial condition; belated retraction; final bill mutually signed.
3. Settlement executed under court protection
In NTPC Ltd. v. SPML Infra Ltd., (2023) 9 SCC 385 (), the contractor issued a No-Demand Certificate, received final payment, and then entered into a Settlement Agreement during the pendency of a writ petition with interim court protection. When it later alleged coercion:
"The plea of coercion and economic duress leading to the Settlement Agreement is an afterthought."
The court formulated the "Eye of the Needle" test: the referral court must screen and strike down "ex-facie meritless, frivolous and dishonest litigation" at the threshold.
4. Comprehensive post-termination conduct extinguishing the arbitration agreement itself
In Wapcos Ltd. v. Salma Dam Joint Venture, (2019) AIRONLINE SC 1528 (), the parties executed an Agreement of Abatement (AoA) with a "no fault, no liability" clause after project completion. The court held the AoA had the effect of abrogating the arbitration clause in the original contract:
"The Arbitration Petition should have been rejected for lack of subsisting or existing arbitration agreement between the parties on the date of filing."
This goes beyond NCC — when parties take comprehensive steps (removing materials, dismantling machinery, executing a settlement agreement without protest), this can extinguish not just substantive claims but the arbitration agreement itself.
V. The Three Doctrines Applied
A. Estoppel
The courts apply estoppel cautiously in this context. In Sepco Electric Power Construction v. GMR Kamalanga Energy Ltd., SC, 26 Sep 2025 (), the court applied allegans contraria non est audiendus (a party cannot raise contradictory claims) but held that equitable estoppel based on informal communications (emails) cannot override contractual provisions requiring written amendments. The principle requires:
- (a) A clear representation (acceptance of termination);
- (b) Reliance by the other party; and
- (c) Detriment if the position is now reversed.
However, estoppel is not absolute — it does not apply when the NCC or acceptance was obtained under duress, and it cannot extinguish a statutory right to arbitrate.
B. Waiver
The foundational test for waiver of the right to arbitrate comes from Food Corporation of India v. Yadav Engineer & Contractor, (1982) 2 SCC 499 ():
The step must "clearly, unambiguously and unequivocally disclose the intention of the party taking the step to give up the benefit of the arbitration agreement or its right of getting the dispute resolved by arbitration."
This is a very high bar. Mere acceptance of termination, retrieval of materials, or submission of final bills does not meet it. The test requires affirmative conduct showing a deliberate, informed intention to abandon the arbitration agreement — not merely the underlying claim.
The recent decision in Hindustan Construction Co. Ltd v. Bihar Rajya Pul Nirman Nigam Ltd., SC, 28 Nov 2025 () developed a more detailed waiver framework:
"Waiver is a foundational principle of arbitration, rooted in party autonomy and fairness in conduct... [it prevents] parties from approbating and reprobating."
The court distinguished between:
- Section 4 waiver (procedural, by conduct — "deemed waiver" for parties who proceed knowing of non-compliance without timely objection); and
- Section 12(5) waiver (structural — requires "express agreement in writing" after disputes have arisen — no implied waiver permitted).
An important related principle from Bhagwati Prasad Pawan Kumar v. Union of India, (2006) 5 SCC 311 (): where payment cheques are sent with an explicit condition that "retention/encashment will automatically amount to acceptance in full and final satisfaction," the contractor's endorsement of "under protest" is ineffective if the cheques are nevertheless encashed. The protest must be meaningful, not purely formal.
C. Acquiescence
The most recent articulation of acquiescence comes from Municipal Corporation of Greater Mumbai v. R.V. Anderson Associates Ltd., SC, 11 Mar 2026 ():
"Subsequent conduct of the parties serves as a powerful practical tool to understand their contractual intent. Reliance on a party's original understanding of obligations under a contract as well as their actions prevents a party from later on adopting a legalistic interpretation which supports their case in stark contradiction of how they actually operated on the ground."
Prolonged inaction can also constitute acquiescence. In BSNL v. Nortel Networks India Pvt. Ltd., AIR 2021 SC 2849 (), 5½ years of inaction after claim rejection was held to constitute abandonment — the claims were "ex facie" time-barred, and even the referral court could refuse appointment of an arbitrator.
VI. The Decisive Factors: A Practical Checklist
Drawing from the entire body of case law, the following factors determine whether a party that accepted termination can subsequently challenge it in arbitration:
VII. Key Authorities — Summary Table
VIII. Practical Implications
On the specific scenario posed — a party that accepted termination without protest, retrieved materials, submitted final bills, and raised no objection — the position is as follows:
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The right to arbitrate is not lost merely by this conduct. The arbitration clause survives termination (Damodar Valley), and waiver of the right to arbitrate requires a much higher threshold of clear, unequivocal intent (FCI v. Yadav).
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The substantive claims are NOT automatically barred either. Receipt of the final bill without an express undertaking against future claims does not constitute accord and satisfaction (Durga Charan Rautray).
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However, the absence of contemporaneous protest significantly weakens the position. Without any "under protest" endorsement, contemporaneous correspondence, or evidence of duress, the party will struggle to overcome the Master Construction / ONGC Mangalore line of authority requiring prima facie material to support allegations of involuntary acceptance.
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The nature and size of the party matters. A small contractor forced to accept termination to recover investments will receive more sympathetic treatment than an experienced firm with bargaining power (Parmar Construction vs. the Bombay High Court's reasoning in Ajit Mehta).
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Post-2015, the question may be left to the arbitrator. Under SBI General Insurance (2024), whether the conduct constitutes valid accord and satisfaction is increasingly treated as a question for the arbitral tribunal, not a threshold bar to appointing the arbitrator — so long as the claim is not ex facie meritless (NTPC v. SPML's "Eye of the Needle" test).
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Timing is critical. The longer the silence after termination before raising claims, the stronger the inference of acquiescence. A delay of several years may render claims time-barred even at the referral stage (BSNL v. Nortel).