A Person is registered under GST for the Civil Work Contractor services.His main work is purchase the land in different different place in city/village. after purchasing land he build residential house by own amount after completion or incompletion condition of house he sale to consumer with Valid govt.registry. In registry he write area,Rooms,Toilet, Bathroom,etc.He does not receives amount of house in installment but some time receives some amount as advance or after sale of house. But he is not registered in Real Estate Regulatory Authority ACT.
My Query is :- 1- What will be treat this service either Builder or Civil Contractor under GST.
2- What will be apply tax rate on such service
3- will be deposit GST on received advance amount or not
4- can he claim ITC on Purchase building material