The "Clean Slate" Survives: Why the Delhi High Court Was Right to Kill Arbitral Counterclaims Against a Rescued Corporate Debtor

The Hook: A Dangerous Backdoor to the IBC Closed

If there is one legal principle that keeps India’s Insolvency and Bankruptcy Code (IBC) from collapsing under the weight of endless litigation, it is the "clean slate" doctrine. Once a resolution plan is approved, past liabilities are extinguished. But what happens when an aggressive operational creditor tries to use the Arbitration and Conciliation Act to bypass the IBC and resurrect dead claims? And what if the Sole Arbitrator—a former Supreme Court judge, no less—actually buys their argument?

This was the jurisprudential crisis sitting before Justice Harish Vaidyanathan Shankar of the Delhi High Court in M/S Mbl Infrastructure Ltd vs M/S Pradeep Colonisers And Suppliers Pvt Ltd. (Decided: May 4, 2026). In a sharp, structurally sound judgment, the High Court struck down an arbitral award that had allowed extinguished insolvency claims to morph into arbitral counterclaims. For corporate lawyers, this judgment is a masterclass in why specialized statutory regimes like the IBC must fiercely guard their boundaries against collateral attacks.

The Facts: Stripped to the Essentials

The factual matrix is a classic tale of a sub-contractor sleeping on its rights. MBL Infrastructure (Claimant) awarded a sub-contract to Pradeep Colonisers (Respondent) for canal restoration work in Bihar. MBL subsequently went into Corporate Insolvency Resolution Process (CIRP).

Pradeep Colonisers filed its claim before the Interim Resolution Professional (IRP). However, when the Resolution Plan was approved by the Committee of Creditors and the NCLT, Pradeep’s claims were left out in the cold. Crucially, the approved Resolution Plan was submitted by MBL’s own promoter.

Instead of formally challenging the Resolution Plan before the NCLT or NCLAT, Pradeep opted for a bizarre strategy: it waited for the matter to reach the Supreme Court on an appeal filed by another creditor, sought impleadment, and achieved nothing substantive. The Resolution Plan attained finality.

Years later, MBL initiated arbitration against Pradeep for contractual breaches. Pradeep retaliated by filing counterclaims for its unpaid dues—the exact same dues that were ignored in the CIRP. The Sole Arbitrator held that the counterclaims were maintainable and awarded a massive Rs. 6.52 crores to Pradeep. MBL challenged this under Section 34 of the A&C Act.

The Arguments: The Clash of Statues

Before the High Court, MBL’s advocates played a straight, unassailable bat. Relying on Section 31 of the IBC and the Supreme Court’s landmark ruling in Ghanshyam Mishra & Sons, they argued that once a Resolution Plan is approved, any claim not forming part of it stands legally extinguished. Allowing the counterclaims in arbitration was a patent illegality.

The advocates for Pradeep Colonisers, however, mounted a highly creative, albeit ultimately doomed, defense. They argued that the "clean slate" doctrine was designed solely to protect bona fide third-party acquirers of a bankrupt company. Because MBL’s Resolution Plan was submitted by its existing promoter, they argued the doctrine should not apply. Why should a promoter get to wipe out his company's debts, retain control, and hide behind the IBC? They leaned heavily on the Supreme Court’s controversial ruling in State Tax Officer v. Rainbow Papers Ltd. to argue that the binding nature of Section 31 is not absolute.

The Judgment: Finality means Finality

Justice Shankar was entirely unconvinced by Pradeep’s arguments, setting aside the Arbitral Award to the extent it allowed the counterclaims. The High Court’s reasoning was anchored in the strict statutory text of Section 31 of the IBC.

The Court held that the binding nature of an approved Resolution Plan attaches to the corporate debtor as a juristic entity, not to the identity of the person who assumes management. The statute does not carve out a "clean slate" exception for promoter-led resolutions.

"The statute does not contemplate any exception to the finality of an approved Resolution Plan on this ground... To permit such a challenge at a belated stage, or to carve out an artificial distinction based on the identity of the resolution applicant post facto, would be contrary to the express scheme of the IBC."

Furthermore, the Court dismantled Pradeep's reliance on Rainbow Papers. Justice Shankar rightly noted that Rainbow Papers was a decision rendered within the statutory appellate hierarchy of the IBC (a Section 62 appeal). It cannot be used as a weapon in a collateral arbitral proceeding by a creditor who entirely bypassed the NCLT and NCLAT.

The Critique: An Emotionally Appealing but Legally Disastrous Arbitral Award

Let’s be blunt: I completely agree with the High Court. The Sole Arbitrator’s initial ruling was emotionally appealing but legally disastrous.

It is easy to sympathize with an operational creditor who watches the same promoter take back control of a company without paying their dues. However, creating a jurisprudential carve-out that says "the clean slate doctrine doesn't apply to promoters" would plunge the IBC into chaos. While Section 29A restricts defaulting promoters from submitting plans, the law does allow it in specific scenarios (e.g., MSMEs). If we allow creditors to hound these companies post-resolution via arbitration, we destroy the very concept of corporate rescue.

The Arbitrator committed a fundamental error of jurisdiction by effectively acting as an appellate authority over a finalized NCLT order.

Where did the advocates go wrong? Pradeep Colonisers’ legal strategy was flawed from the start. You cannot sleep through the NCLT and NCLAT stages and hope to ambush the corporate debtor in arbitration years later. Their reliance on Rainbow Papers in a Section 34 hearing was a desperate attempt to fit a square peg into a round hole. Rainbow Papers deals with statutory charges under state laws, not ordinary operational debt, and definitely does not grant a license to bypass the IBC hierarchy.

The Takeaway for Practitioners

This judgment serves as a harsh reminder for commercial litigators: Arbitration is not an alternative appellate forum for the IBC.

1. Vigilance is non-negotiable: If your client’s claim is rejected or ignored by the Resolution Professional, you must litigate it immediately before the NCLT under Section 60(5) of the IBC. Do not wait for the plan to be approved, and certainly do not wait to file it as a counterclaim in a future arbitration.
2. The shield of Section 31 is absolute: Whether the company is bought by Reliance or rescued by its own promoter, a finalized Resolution Plan is an iron-clad shield. You cannot pierce it using the A&C Act.
3. Collateral attacks will fail: Attempting to use High Court execution proceedings or arbitral tribunals to reopen CIRP claims borders on an abuse of process. Courts are increasingly showing zero tolerance for this "hydra head popping up" strategy.

Justice Shankar’s ruling protects the sanctity of the IBC. For a corporate debtor emerging from CIRP, a clean slate must mean exactly that—clean. No asterisks, no backdoor arbitrations.