In this Act, unless the context otherwise requires,-

(57) "works contract" includes any agreement for carrying out for cash, deferred payment or other payment or other valuable consideration, the building, construction, fabrication, erection, installation, fitting out, improvement, modification, repair or commissioning of any movable or immovable property;

Explanation:- For the purpose of this sub-clause, construction of building or civil structure or a part thereof, which is intended for sale, wholly or partly, by a person or any person authorized by him before or during construction (except in cases for which no sum is received from or on behalf of the prospective buyer by such person or any person authorized by him or no agreement is made between such person or any person authorized by him and prospective buyer, before completion of construction) shall be works contract.