Sir, My grandfather has purchased agriculture land 40 years ago and he made partitions land and given to his 6 son's.my grandfather has passed away 25 years ago.his son's cultivating their partitions since 40 years.but till now they have not written any documents for their partitions.now one of them sold his partition land to third-party without taking any signatures by other brother's .can you please tell me how to get Pattadar Passbooks or register for others land ?