Section 45
Partial failure of consideration not consisting of money
Chapter 3: Parties to notes, bills and cheques
Where a part of the consideration for which a person signed a promissory note, bill of exchange or cheque, though not consisting of money, is ascertainable in money without collateral enquiry, and there has been a failure of that part, the sum which a holder standing in immediate relation with such signer is entitled to receive from him is proportionally reduced.
The Negotiable Instruments Act, 1881 (Act No. 26 of 1881). From the updated text on India Code, with later amendments. Being checked against the official copy; amendment notes are not shown yet.