Sections 171 and 172 explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
Section 171 tells the bankruptcy trustee to call on every creditor to prove its debt within fourteen days of preparing the list of creditors, and sets out what a proof of debt must contain, how interest, uncertain debts and future debts are treated and what follows if a secured creditor does not prove its security within thirty days. Section 172 says what a secured creditor may prove if it realises or surrenders its security.
The article follows the IBBI consolidated text of the Code amended up to 12 August 2021 (the "consolidated text").
The trustee gives notice to each creditor to submit proof of debt within fourteen days of preparing the list of creditors under section 132. The proof must give full particulars of the debt and of any security, with the values the creditor assesses, in the prescribed form and manner. A secured creditor who realises its security proves for the balance; one who surrenders it to the trustee for the general benefit of creditors proves for its whole claim. A creditor who does not file a proof of security within thirty days risks a sale of the property clear of that security, with leave of the Adjudicating Authority.
Section 171(1) to (3): the notice and the proof
Notice. "The bankruptcy trustee shall give notice to each of the creditors to submit proof of debt within fourteen days of preparing the list of creditors under section 132." The fourteen days run from the preparation of the list, not from the creditor's receipt of notice. The text uses "within fourteen days of preparing the list", which describes the trustee's own timetable. If you are a creditor responding to such a notice, a recovery suit or other recovery route may also be relevant, and our team can help you plan how the proof fits with the rest of your claim.
Contents, sub-section (2). The proof of debt shall:
| Clause | Requirement |
|---|---|
| (a) | Require the creditor to give full particulars of the debt, including the date on which the debt was contracted and the value at which that person assesses it |
| (b) | Require the creditor to give full particulars of the security, including the date on which the security was given and the value at which that person assesses it |
| (c) | Be in such form and manner as may be prescribed |
The form and manner are left to be prescribed; no prescription is in the texts consulted, so it must be checked.
Decree holders, sub-section (3). "In case the creditor is a decree holder against the bankrupt, a copy of the decree shall be a valid proof of debt."
Section 171(4) to (7): amount and timing
| Sub-section | Rule |
|---|---|
| (4) | Where a debt bears interest, the interest is provable as part of the debt, "except in so far as it is owed in respect of any period after the bankruptcy commencement date" |
| (5) | The trustee shall estimate the value of any bankruptcy debt which does not have a specific value |
| (6) | The value assigned by the trustee under sub-section (5) is the amount provable by the concerned creditor |
| (7) | A creditor may prove for a debt where payment would have become due at a date later than the bankruptcy commencement date as if it were owed presently, and may receive dividends in a manner as may be prescribed |
Sub-section (4) fits section 79(5)(c), which includes in "bankruptcy debt" any interest which is a part of the debt under section 171. Post-commencement interest has its own place in section 178(5), where a surplus after payment of the debts is applied to interest since the bankruptcy commencement date; the live post on the priority of payment of debts under section 178 explains that order, and the Insolvency and Bankruptcy Code (Amendment) Act, 2026 changes section 178 by its section 57, which is not explained here.
Sub-section (6) makes the trustee's estimate the amount the creditor can prove: the text gives the creditor no stated route to dispute the estimate and does not say whether one exists.
Section 171(8): proof of security within thirty days
This sub-section is paraphrased here. Where the trustee serves a notice under sub-section (1) and the person served does not file a proof of security within thirty days after the date of service of the notice, the trustee may, with leave of the Adjudicating Authority, sell or dispose of any property that was subject to the security, clear of that security.
Three points. The trigger is failure to file "a proof of security", not failure to prove the debt. The period is thirty days "after the date of service of the notice". And the trustee needs the Adjudicating Authority's leave. A secured creditor that ignores the notice therefore risks losing its security over the property, so the thirty-day period deserves care.
Section 172: proof of debt by secured creditors
| Sub-section | Secured creditor who | May produce proof of |
|---|---|---|
| (1) | Realises his security | The balance due to him |
| (2) | Surrenders his security to the bankruptcy trustee for the general benefit of the creditors | His whole claim |
The choice between the two is the creditor's. The text sets no time for it and gives no further rule on how realisation by the creditor is to be reconciled with the trustee's functions; it is silent on those points. Sections 171 to 173 are also the subject of a live post on proof of debt, secured creditors and mutual set-off, and section 173 itself is treated in Section 173 of this series.
A worked example
Ritika Bhatt is bankrupt. Her trustee prepares the list of creditors under section 132 on the 3rd of the month and gives each creditor notice to submit proof of debt, which must be within fourteen days of preparing the list. Three creditors respond:
- Falcon Supplies, an unsecured supplier with a decree, files a copy of the decree, which is a valid proof under sub-section (3).
- Lakeview Finance, secured by a mortgage on a warehouse, realises the warehouse itself and files proof of the balance due under section 172(1).
- Bharat Auto Loans, secured by a vehicle, does not file a proof of security within thirty days of service of the notice. The trustee may, with leave of the Adjudicating Authority, sell the vehicle clear of that security under section 171(8).
Alternatively, if Lakeview Finance had surrendered the warehouse to the trustee for the general benefit of creditors, it could have produced proof of its whole claim under section 172(2). The names and facts are invented.
What remains for the rules
The form and manner of proof, and the manner of receiving dividends on future debts, are matters "as may be prescribed". For personal guarantors to corporate debtors, the Insolvency and Bankruptcy Board of India (Bankruptcy Process for Personal Guarantors to Corporate Debtors) Regulations, 2019 (the copy consulted is amended up to 02-06-2026) apply alongside Part III; no rules or regulations for other individuals or for partnership firms are in the texts consulted.
Law around these sections
The Amendment Act, 2026 (No. 6 of 2026) has no clause that amends sections 171 or 172. It comes into force on the date or dates the Central Government notifies; the notification is not in the texts consulted, so check whether any change to a related provision has been notified.
Amendments and notifications made after 12 August 2021, other than the Amendment Act, 2026, are not in the texts consulted and should be checked.
Need help proving a debt in a bankruptcy?
Unsecured and secured creditors alike should treat the trustee's notice as a deadline. If you are owed money by someone who is bankrupt, our team can help you put together the proof and decide how it sits with a recovery suit or other steps you may be taking.
Key takeaways
- The trustee's notice goes to each creditor within fourteen days of preparing the list of creditors under section 132.
- The proof gives full particulars of the debt and the security, with the creditor's assessed values, in the prescribed form and manner.
- A copy of a decree is a valid proof for a decree holder.
- Interest is provable except for the period after the bankruptcy commencement date; the trustee estimates debts with no specific value.
- A secured creditor who realises security proves the balance; one who surrenders security proves the whole claim.
- No proof of security within thirty days of service allows a sale clear of the security with leave of the Adjudicating Authority.
Read next
- Section 173 of the Insolvency and Bankruptcy Code, 2016: mutual credit and set-off in bankruptcy
- Sections 174 and 175: interim dividend and distribution of property of the bankrupt
- Proof of debt under sections 171 to 173 and mutual set-off
- Sections 168 to 170: obligations under contracts and death of the bankrupt
Disclaimer: Based on the IBBI consolidated text of the Insolvency and Bankruptcy Code, 2016 amended up to 12 August 2021 and on the Insolvency and Bankruptcy Code (Amendment) Act, 2026 (No. 6 of 2026), which comes into force on the date or dates notified by the Central Government, as consulted on 2 October 2026. It explains the words of the statute only; commencement notifications, other amendments made after 12 August 2021, notified thresholds, the rules and IBBI regulations, and the way tribunals and courts apply these sections should be checked. This article is general information, not legal advice; check the official text before acting.