This document defines and describes different types of cheques. It begins by defining a cheque as a bill of exchange that orders a bank to transfer money from one party's account to another. It then discusses key features such as cheques requiring signatures and fixed amounts. The document outlines 8 main types of cheques: bearer, order, crossed, open, post-dated, traveller's, self, and banker's cheques. Each type has specific rules around who can cash it, dates, and locations. The validity of most cheques is 3 months from the date of issue according to RBI guidelines.