Hello, my father purchased a land 30yrs before in my native. Now the government is taking that land but my father has no patta for that particular land. Now government is asking for legal heirs no objection letter. They are in different places we can't go and find each one. I heard there is a law stating that if a private property owns by a person for about 12yrs,he has full rights over the land.can anyone give me proper information? We visited more lawyers and wasn't much helpful. Thank you.