Madras General Sales tax Act , 1939
S.2(i): Works contract -Lift installation- Construction- Building products – Manufacture, supply and installation of lifts- A contract for manufacture, supply and installation of lifts is a works contract [ S. 4, 5 ,6 ,7 , Constitution of India ,Art, 366(29A)(b) ,Finance Act , 1994 , S, 65(29) , S. 2 , Maharashtra Lifts Act , 1939, S .3(e), Sale of Goods Act 1930 , S.21 ]