Maharshtra co-op act -associate member

From whatever you have stated here the case has become very complicated. I think that in the original stamped purchase deed only your mother's name was there as the transferee and thus only your mother's name was entered in the share certificate. Now with all the things done by the Society and your parents your father has become the first named person on the share certificate. Thus your father has become owner of the flat without a transfer deed, gift deed or payment of stamp duty. Thus this becomes a case of back-door entry evading payment of stamp duty. The Society members who have complained to the Dy. Registrar are right.