Lost previous documents & not got patta

Dear Sir,

              Original Sale Deed in your Friends name is Correct evidence for title, Patta is Secondary aspect you need not worry about Patta, But when your friend purchased the land with previous Purchaser,whether he checked the previous position or your friend was cheated by the previous owner ?  If the document is Correct and gunuine verify along with the document with Local V.A.O. (Village Admin Officer ) and then with the Revenue Office at Madurai ( Land Revenue and Records Tahsildar Officer -for that juristiction) and file a petition before the Tahsildar, Tahsildar Land Records is authority to handle the all land problems.

Sir, thanks for your helpful info. But my Friend's Document is Genuine & No one has cheated him at the time he bought the Land. Right now, he has to approach Tahsildar for Land Records to verify Survey Land Register. Am I right,Sir?