Rtc of land illegally changed

How do you claim title or ownership to the so called ancestral property.

If you don't have any records including patta or even RTC to your name then you cannot challenge the RTC lying on somebody else's name.

Ascertain the details and collect the relevant documents, consult a local lawyer and proceed as per advise of the local lawyer.

Thanks for the reply sir. The land was purchased by my grandparents atleast 70 years ago. On ascertaining the documents we found a small section of land having rtc in someone else's name ( say A). The whereabouts of the previous owner is not known. However someone else (say X ) a relative has gotten the land parcel' s rtc changed to his name fraudulently some 2 years ago.

Show relevant documents to a local lawyer for better appreciation of facts of the case.