Our grandfather executed a gift deed about 35 years ago gifting 2 acres of agricultural land to his adopted daughter. This is out 10 acres piece and not subdivided. The deed was registered. However, the deed was signed only by him and not by my father. Later we paid money for one acre and taken back one acre. The remaining one acre was sold off by her about 30 years ago. She was never in possession of this land and we have been farming this land.
When we paid money and taken back the land we did not get any documentation. She later somehow managed to get pattadar passbook for this land. She was never in possession. Now she is approaching revenue authorities asking for subdivision and trying to get possession after around 30 years. She has been silent all these years. We sold this one acre and given possession to somone else who also obtained passbook. Is there any remedy or course available to us to prevent her and protect our one acre which was sold out to third party.