Essentials of a Valid Promissory Note, Bill of Exchange, and Cheque (Under Negotiable Instruments Act, 1881) Introduction In day-to-day business, people often use documents like Promissory Notes , Bills of Exchange , and Cheques to settle their payments instead of using physical cash. These documents are called Negotiable Instruments and are governed by the Negotiable Instruments Act, 1881 . This assignment explains: Essentials of a Promissory Note Essentials of a Bill of Exchange Essentials of a Cheque Essential elements of a Cheque Types of Cheques Part 1: Essentials of a Valid Promissory Note Definition of Promissory Note As per Section 4 of the Negotiable Instruments Act: "A promissory note is an instrument in writing (not being a bank note or a currency note) containing an unconditional undertaking, signed by the maker, to pay a certain sum of money only to, or to the order of, a certain person or to the bearer of the instrument." In s...