Sh. Muthukumar Muthunarasimhan Ji,
What is mixed supply ? Pl. read the following extract of Board's Flyer No.4 dated 1.1.18. Regarding the definition I differ from you.
Mixed Supply
Under GST, a mixed supply means two or more individual supplies of goods or services, or any combination thereof, made in conjunction with each other by a taxable person for a single price where such supply does not constitute a composite supply;
Illustration : A supply of a package consisting of canned foods, sweets, chocolates, cakes, dry fruits, aerated drinks and fruit juices when supplied for a single, price is a mixed supply. Each of these items can be supplied separately and is not dependent on any other. It shall not be a mixed supply if these items are supplied separately.
In order to identify if the particular supply is a Mixed Supply, the first requisite is to rule out that the supply is a composite supply. A supply can be a mixed supply only if it is not a composite supply. As a corollary it can be said that if the transaction consists of supplies not naturally bundled in the ordinary course of business then it would be a Mixed Supply. Once the amenability of the transaction as a composite supply is ruled out, it would be a mixed supply, classified in terms of a supply of goods or services attracting highest rate of tax.
The following illustration given in the Education Guide of CBEC referred to above can be a pointer towards a mixed supply of services :-
“A house is given on rent one floor of which is to be used as residence and the other for housing a printing press. Such renting for two different purposes is not naturally bundled in the ordinary course of business. Therefore, if a single rent deed is executed it will be treated as a service comprising entirely of such service which attracts highest liability of service tax. In this case renting for use as residence is a negative list service while renting for non-residence use is chargeable to tax. Since the latter category attracts highest liability of service tax amongst the two services bundled together, the entire bundle would be treated as renting of commercial property.”