A recent case in the Bombay High Court highlighted that where ancestral property is concerned, oral relinquishment of one’s right in a property is valid, even if it is not registered. This means that if a sister has said that she does not need a share in the ancestral property and wishes to transfer her share to her brother, this oral relinquishment is valid.
Usually oral agreements are very difficult to enforce because it is very difficult to prove that such an agreement happened.