If a person is in possession of a property from Last 15 years. He is having possession, Lock & key of property from last 15 years. He is running business from same property from last 15 years. If he is paying to owner every year some charges as share of electricty bill. No Rent is paid by him. Now redevelopment of property is under process. Can he claim ownership flat from builder/ developer in redeveloped building? Can he be treated as tenant? what will be his right?