Ans:
A composite supply consists of two or more taxable supplies of commodities or services, or both, or any combination of the two, that are bundled in the natural process and supplied in tandem in the ordinary course of business, with one of them being the major supply. This is a composite supply when a consumer buys a television set and receives a warranty and a maintenance contract with the TV. In this case, the primary supply is television, while warranty and maintenance services are optional.
A mixed supply is a collection of multiple independent supplies of commodities or services, or any combination thereof, made in tandem for a single price that could normally be delivered separately. For instance, a shopkeeper may sell storage water bottles in addition to a refrigerator together in a mixed supply instead of selling them seperately.