The Works Contract has been defined in Section 2(119) of the CGST Act, 2017 as
“works contract” means a contract for building, construction, fabrication, completion, erection, installation, fitting out, improvement, modification, repair, maintenance, renovation, alteration or commissioning of any immovable property wherein transfer of property in goods (whether as goods or in some other form) is involved in the execution of such contract.”
Note:
As per CGST Act, works contracts are a supply of services under GST.