Negotiable Instruments Act, 1881
87. Affect of material alteration
Any material alteration of a negotiable instrument renders the
same void as against anyone who is a party thereto at the time of making such
alteration and does not consent thereto, unless it was made in order to carry
out the common intention of the original parties;
Alteration by endorsee:
and any such alteration, if made by an endorsee, discharges his
endorser from all liability to him in respect of the consideration thereof.
The provisions of this section are subject to those of sections
20, 49, 86 and 125.