Business Laws and Ethics · Special Contracts - Indemnity and Guarantee; Bailment and Pledge; Laws of Agency

Rights and Discharge of Surety under the Indian Contract Act

Updated 10 October 2026 · Fact-checked

A surety guarantees another person's debt or duty. The surety is discharged when the creditor releases the principal debtor (Section 134), varies the contract without consent (Section 133), gives time or compounds without consent (Section 135), impairs the surety's remedy (Section 139), or loses securities (Section 141). Mere forbearance to sue does not discharge the surety (Section 137).

Understand Rights and Discharge of Surety

In a contract of guarantee, the surety promises to perform the promise, or discharge the liability, of a third person (the principal debtor) if that person defaults. The person who receives the guarantee is the creditor (Section 126). A guarantee can be oral or written.

The surety's liability is co-extensive with that of the principal debtor unless the contract says otherwise (Section 128). So the surety pays the debt, plus interest and charges that fall due on it. But the surety is a safety net, not the main player. The law therefore protects the surety from the creditor's careless or unfair dealings with the principal debtor.

The rights of a surety come mainly in two forms. Against the creditor, the surety can claim the benefit of every security the creditor holds against the principal debtor at the time of the guarantee, whether the surety knows of it or not (Section 141). Against the principal debtor, once the guaranteed debt is due or default has happened and the surety has paid or performed all he is liable for, he steps into all the rights the creditor had against the debtor (Section 140). Against co-sureties, a surety who has paid can ask for contribution. The Act text supplied here does not cover contribution sections, so learn that rule as a principle: co-sureties share the burden equally or in proportion to their agreed limits.

Discharge of surety means the surety is freed from liability. It happens in these ways: release of the principal debtor by contract or by the creditor's act or omission that legally discharges the debtor (Section 134); variance in the terms of the contract without the surety's consent, which discharges him for later transactions (Section 133); a contract by which the creditor compounds with, gives time to, or agrees not to sue the principal debtor, unless the surety assents (Section 135); the creditor's act or omission that impairs the surety's eventual remedy (Section 139); and the creditor losing or parting with a security without the surety's consent, which discharges him to the extent of its value (Section 141).

Some things do not discharge the surety. Mere forbearance to sue the debtor is not enough unless the guarantee says otherwise (Section 137). A time-giving contract between the creditor and a third person, not the debtor, does not discharge him (Section 136). Release of one co-surety does not discharge the others, and the released surety stays answerable to his co-sureties (Section 138). Also, where a guarantee is given on the condition that the creditor will not act on it until another person joins as co-surety, the guarantee is not valid if that person does not join (Section 144).

Key rules to remember

Extent of surety's liability: Surety's liability = Principal debtor's liability (unless the contract provides otherwise); Section 128. Includes interest and charges that have become due on the debt.
Discharge by release of principal debtor: Contract releasing debtor, or creditor's act/omission legally discharging debtor ⇒ surety discharged; Section 134. Illustrations: composition with creditors; B diverting water so A cannot grow the crop.
Discharge by variance: Variance without surety's consent ⇒ surety discharged as to later transactions; Section 133. Past transactions before the variance are not wiped out.
Discharge by compounding or giving time: Creditor + principal debtor contract to compound, give time or not sue, without surety's assent ⇒ surety discharged; Section 135. The contract must be with the principal debtor.
Time given to a third person: Contract to give time made with a third person, not the debtor ⇒ surety not discharged; Section 136.
Mere forbearance: Creditor's mere forbearance to sue ⇒ surety not discharged (absent contrary provision); Section 137.
Impairing surety's remedy: Act inconsistent with surety's rights, or omission of duty owed to surety, impairing eventual remedy ⇒ surety discharged; Section 139. Example: prepaying instalments without the surety's knowledge.
Loss of security: Creditor loses or parts with security without consent ⇒ surety discharged to the extent of the security's value; Section 141. Applies to securities held when the guarantee was given.
Release of a co-surety: Release of one co-surety ⇒ others not discharged; released surety still liable to co-sureties; Section 138.
Co-surety condition: Guarantee given on condition that another joins as co-surety; if he does not join ⇒ guarantee not valid; Section 144.
Surety's rights after payment: Surety pays or performs all he is liable for ⇒ gets all rights the creditor had against the principal debtor; Section 140. The debt must be due or default must have occurred.

How to solve Rights and Discharge of Surety questions

Case-study questions give you a story with a creditor, a debtor and a surety. Your job is to decide whether the surety is discharged or still liable, and to name the section.

1Identify the three parties: creditor, principal debtor and surety. Note any co-sureties.
2List each act in the story in time order. Mark who did it: creditor, debtor, surety or a third person.
3Match each act to a rule. Release of debtor: Section 134. Change in terms: Section 133. Time, composition or promise not to sue with the debtor: Section 135. Prepayment or spoiling the surety's remedy: Section 139. Security lost or given up: Section 141. Doing nothing: Section 137.
4Check the consent point. Did the surety agree to the change? Under Sections 133 and 135 his assent saves the guarantee.
5Check the extent of discharge. Section 133 discharges for later transactions only. Section 141 discharges only to the value of the security.
6If a co-surety or a condition is involved, apply Sections 138 and 144.
7State the conclusion in one line: surety discharged, partly discharged, or liable. Then add the surety's rights against the debtor (Section 140) if he has paid.

Quickest way: Three-question test for discharge

When to use it: Use this for the 15 MCQs and for the first read of a case study.

Who acted? If only the creditor stayed silent or waited, the surety is usually not discharged (Section 137).
With whom was the deal? A deal with the principal debtor on time, composition or release discharges the surety (Sections 134, 135). A deal with a third person does not (Section 136).
Did the surety consent, and how much was lost? No consent plus variance means discharge for later transactions. A lost security means discharge only up to its value.

Common mistakes in Rights and Discharge of Surety

Saying the surety is discharged because the creditor did not sue for a long time.
Students feel delay is unfair to the surety.
Fix: Remember Section 137: mere forbearance does not discharge the surety unless the guarantee says otherwise.
Treating every change as discharging the surety for the whole guarantee.
Students forget the limit in Section 133.
Fix: Write that discharge is as to transactions subsequent to the variance, and only where the surety did not consent.
Discharging the surety when time is given by the creditor to a third person.
Students read 'gives time' and stop reading.
Fix: Check who the contract is with. Section 135 needs a contract with the principal debtor. Section 136 protects against a third-person deal.
Releasing all co-sureties when the creditor releases one.
Students assume release is all or nothing.
Fix: Apply Section 138: the others are not discharged, and the released surety remains answerable to his co-sureties.
Giving full discharge when a security is lost.
Students copy the discharge idea from Section 134.
Fix: Under Section 141 the surety is discharged to the extent of the value of the security. Compute that value and deduct it.
Ignoring Section 144 and treating a guarantee as valid though the promised co-surety never signed.
Students focus on the surety and miss the condition.
Fix: Look for a condition that the creditor will not act until another person joins. If that person does not join, the guarantee is not valid.

Worked examples

Example 1

A guarantees to C the price of goods that C will supply to B. C supplies goods worth ₹80,000. B then gets into financial trouble and contracts with his creditors, including C, to assign his property to them in return for being released from their demands. C later asks A to pay. Is A liable?

Show the solution

Parties: C is the creditor, B the principal debtor and A the surety.
The act is a contract between the creditor (C) and the principal debtor (B) by which B is released from his debts.
Section 134 says the surety is discharged by any contract between the creditor and the principal debtor by which the principal debtor is released.
A did not need to agree. The rule operates on the release itself.
Therefore A is discharged from his suretyship.

Answer: A is not liable. B was released by a contract with C, so A is discharged under Section 134.

Example 2

Rohan guarantees a loan of ₹5,00,000 made by a bank to Mehta Traders. The bank also holds a mortgage over Mehta's machinery worth ₹2,00,000, taken when the loan was given. Without Rohan's consent, the bank cancels the mortgage. Mehta becomes insolvent and the bank sues Rohan for ₹5,00,000. How much can the bank recover from Rohan?

Show the solution

Parties: bank is the creditor, Mehta Traders the principal debtor and Rohan the surety.
The mortgage existed when the guarantee was given. Section 141 gives the surety the benefit of every such security, whether he knows of it or not.
The bank parted with the security without Rohan's consent. So Rohan is discharged to the extent of the value of the security.
Value of security = ₹2,00,000.
Remaining liability = ₹5,00,000 − ₹2,00,000 = ₹3,00,000.

Answer: The bank can recover ₹3,00,000 from Rohan. He is discharged to the extent of ₹2,00,000 under Section 141. If Rohan pays, Section 140 gives him the bank's rights against Mehta Traders.

Exam tips

In case studies, quote the section number and the exact condition (for example, 'without the surety's consent') in the first line of your reasoning. It earns step marks.
For MCQs, look for the trigger word: 'released' points to Section 134, 'time' or 'composition' to Section 135, 'forbearance' to Section 137, 'security' to Section 141.
Learn the illustrations: the indigo crop and stream (Section 134), the prepaid instalments (Section 139) and the cancelled mortgage (Section 141). Examiners often adapt them.
Always state the extent of discharge: full, for later transactions only, or up to the value of a security.
Write a closing line on the surety's rights against the debtor under Section 140 if the facts say he has paid.

Practice questions from Special Contracts - Indemnity and Guarantee; Bailment and Pledge; Laws of Agency

Rights and Discharge of Surety in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Rights and Discharge of Surety: frequently asked questions

Is the surety discharged if the principal debtor is released by the creditor?

Yes. Section 134 discharges the surety by any contract between the creditor and the principal debtor that releases the debtor. It also applies where an act or omission of the creditor has the legal consequence of discharging the debtor.

What does Section 144 say about co-sureties?

If a person gives a guarantee on the condition that the creditor will not act on it until another person joins as co-surety, the guarantee is not valid if that other person does not join. Always check the facts for such a condition.

Does the creditor's delay in suing discharge the surety?

No. Section 137 says mere forbearance to sue the principal debtor or enforce any remedy does not discharge the surety, unless the guarantee provides otherwise. A binding promise to give time to the debtor is different and falls under Section 135.

What rights does a surety get after paying the creditor?

Once the debt is due or default has occurred, and the surety has paid or performed all he is liable for, he gets all the rights the creditor had against the principal debtor (Section 140). This lets him recover from the debtor.

Does releasing one co-surety free the others?

No. Under Section 138, release of one co-surety does not discharge the others. The released co-surety is also not freed from his responsibility to the other sureties.