The original transaction between the Builder and the purchaser was an incomplete one since it was not registered. Having stepped in his shoes by acquiring his right as the original purchaser and registered the
transaction with the Builder. You are not liable to pay any transfer fees to the Society. I respectfully differ with Mr. Patil's views. While every member is part of the society and needs to cooperate, the society is also duty bound to accept and recognize an incoming member's bona fide rights. Write a letter producing the registered document and demand recognition of you as a member and issue the share certificate in your name. If this does not happen write to the Registrar of societies.
vasudevan