Picture this: a cheque worth ₹50,000 gets deposited at a bank, but the amount in figures has been quietly changed from ₹5,000. The bank pays it out, the fraud is discovered later, and now everyone wants to know who is legally responsible. This is exactly the kind of situation that Section 87 of the Negotiable Instruments Act, 1881 was designed to address. It deals with what happens when someone tampers with a cheque, bill of exchange, or promissory note after it has been issued, and why even a small, seemingly harmless change can void the entire instrument.
Table of Contents
- What is material alteration
- What counts as a material alteration
- Changes to date, amount, time or place of payment
- Other alterations that qualify
- What does not count as material alteration
- The legal effect of material alteration
- Alteration by an indorsee discharges the indorser
- How banks and paying parties are protected
- A real case: Veera Exports v. T. Kalavathy
- Why this matters for commerce students and future professionals
- Quick recap
What is material alteration
A negotiable instrument is only as trustworthy as its original terms. The moment someone changes those terms without everyone’s consent, the document stops representing what the parties actually agreed to. The law calls this a material alteration: any change that affects the legal character or financial obligation created by the instrument.
The Act itself does not give an exhaustive definition, but courts have consistently followed the principle that an alteration is material if it changes the legal relationship between the parties or the sum of money payable, as noted in commentary on Section 87. In short, if the change alters what the instrument legally means or how much someone owes, it counts as material.
What counts as a material alteration
Not every mark or correction on a cheque is treated the same way. The law focuses on changes that touch the core commercial terms of the instrument.
Changes to date, amount, time or place of payment
These four elements form the financial backbone of any negotiable instrument, so altering any of them is almost always material:
| Element altered | Why it matters |
|---|---|
| Date | Changes when the instrument becomes payable or affects limitation periods |
| Amount (in words or figures) | Directly changes the sum a party is liable to pay or receive |
| Time of payment | Alters the maturity or due date of the obligation |
| Place of payment | Shifts where and how the payer must fulfil the obligation |
Other alterations that qualify
Beyond the four listed above, courts have also treated the following as material: adding a new party to the instrument, changing the rate of interest, converting an order instrument into a bearer instrument, tearing away a material part of the document, and erasing an account payee crossing. Even changing the bank at which a bill is payable has been held material, as seen in the case of Seth Tulsidas Lalchand v. Rajagopal.
What does not count as material alteration
Interestingly, the Act carves out specific exceptions. Filling in the blanks of an incomplete instrument, converting a blank endorsement into a special one, qualifying or limiting an acceptance, and a holder crossing an uncrossed cheque are all treated as valid actions rather than material alterations, as summarised under Section 87 read with Sections 20, 49, 86 and 125. Purely clerical corrections that fix an obvious typographical slip, made with everyone’s knowledge, are usually treated the same way.
The legal effect of material alteration
Section 87 lays down a fairly strict rule: any material alteration renders the instrument void against anyone who was a party to it at the time of the change and who did not consent to it. This means that party can refuse to honour the instrument entirely, not just the altered portion.
There is one important exception. If the alteration was made simply to carry out the original, common intention of the parties, such as correcting an honest clerical mistake that everyone agreed to, it will not void the instrument. The distinction the courts draw is between an alteration made with the shared understanding of all parties versus one made unilaterally by a single party for their own advantage.
Alteration by an indorsee discharges the indorser
The second part of Section 87 deals with a more specific scenario involving endorsement. When a negotiable instrument is transferred through endorsement, the endorser effectively guarantees the instrument to the next holder. But if that later holder, the indorsee, goes on to materially alter the instrument, the law discharges the original indorser from liability entirely.
This exists to protect people who transfer instruments in good faith. An endorser signs off on the instrument exactly as it reads at the time of transfer. If the person who receives it afterwards changes the terms, it would be unfair to hold the endorser accountable for a version of the document they never actually agreed to.
How banks and paying parties are protected
Material alteration creates a real practical problem for banks, which process thousands of cheques daily and cannot examine every one under a magnifying glass. Section 89 of the Act addresses this by protecting a bank or any party that pays an instrument in due course, according to its apparent tenor, even if the instrument was altered in a way that was not visible on its face, as detailed in Section 89. In simple terms, if the alteration is not apparent and the payment is otherwise made honestly and carefully, the payer is discharged from further liability.
To reduce fraud risk in the first place, the Reserve Bank of India has also tightened cheque-handling rules over the years. Under the cheque truncation system, banks are directed not to accept cheques carrying corrections or alterations to the payee’s name or the amount, with the only permissible correction being to the date, as clarified in the RBI circular on cheque alterations. If a cheque shows any other change, banks are expected to insist on a fresh instrument rather than accept a corrected one. This operational rule works alongside Section 87, essentially preventing many alteration disputes from reaching the courts at all.
A real case: Veera Exports v. T. Kalavathy
Case law helps make the rule concrete. In Veera Exports v. T. Kalavathy, the Supreme Court examined a cheque that had been altered without the drawer’s consent and held that such a cheque becomes void against the drawer, reinforcing that unauthorised changes strip the instrument of its enforceability, as summarised by legal commentary on the judgment. This case is frequently cited in Indian courts precisely because it draws a clean line: consent is the deciding factor, not the size of the change.
It is worth noting how this interacts with cheque dishonour law. If a cheque bounces because of an unauthorised alteration rather than insufficient funds, the criminal liability provisions for dishonour under Section 138 typically do not apply in the same way, because the instrument itself has been rendered void as against the drawer.
Why this matters for commerce students and future professionals
For anyone heading into accounting, banking, or business management, this is not just an exam topic. Businesses issue and receive cheques, promissory notes, and bills of exchange constantly, and disputes over altered instruments show up in real commercial transactions. Understanding Section 87 helps explain why banks insist on fresh cheque leaves instead of accepting scratched-out corrections, why endorsers are protected from later tampering, and why even a single unauthorised digit change can unravel an entire payment obligation.
It is a useful reminder of a broader principle in commercial law: negotiable instruments derive their value from certainty. The moment that certainty is compromised, even with good intentions, the legal protections built around the instrument start to fall apart.
Quick recap
- Material alteration changes the legal character or obligation of an instrument.
- It renders the instrument void against non-consenting parties, unless made to fulfil the original common intention.
- Alteration by an indorsee discharges the prior indorser from liability.
- Certain actions, like filling blanks or crossing a cheque, are not treated as material alterations.
- Banks paying an instrument in due course, without the alteration being apparent, are protected under Section 89.
What do you think? If a bank cannot reasonably detect an alteration and pays the cheque anyway, should the loss fall entirely on the original drawer, or should banks be expected to invest in better detection systems regardless of cost? And where do you think the line should be drawn between an honest clerical correction and a material alteration made without full consent?
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