The doctrine of "feeding the grant by estoppel" under Section 43 of the Transfer of Property Act, 1882…

Under Section 43 of the Transfer of Property Act, 1882, where a person fraudulently or erroneously represents that he is authorised to transfer certain immovable property and professes to transfer it for consideration, the transfer operates, at the option of the transferee, on any interest which the transferor subsequently acquires at any time while the contract of transfer subsists—that is, so long as the transferee has not rescinded the contract. The section does not apply to gifts, movable property, or against a subsequent bona fide transferee for consideration without notice.