Cancellation of registered gift deed which is fraudulently prepared

You have to prove that your father was not mentally sound when he signed the gift deed. Mere physical disability shall not act as an impediment for a person to execute a document. Taking a person's LTI on a document is legally acceptable. The burden is on you to have to prove your case if you allege it was a fraudulent transaction.

Deed once executed cannot be revoked unless all the parties to the Deed agree the same. Court's declaration to the effect that it was executed fraudulently has to be proved. You can prove it in the Court of law and get the order in your favour.

you can file a civil suit and have to prove that the gift deed was obtained fraudulently by letting in evidence and if you prove before the court the above contentions you can win the case. only after perusing the connected documents, proper advise in this regard can be given.

Registration Authority has no Authority to set aside the registered documents. Only competent civil court has decide to set aside the document. You can approach competent civil court to set aside the gift deed. Then you not state about the nature of property. So approach civil court With proper documents.