You did not mention which location in Telangana. What is the extent of land and what is the possible present price.
Presuming that it is nearby Hyderabad, there is every possibility that manipulations are rampant to grab the lands in many ways. The funny thing is that you did not mention from whom you had bought from. It looks like that you might have bought the land from an illegal person ( the regular cheaters) who may not have a right to sell the land. Usually when the issue is gone upto Joint collector means, the authorities may have felt that there is some justification and definitie locus standii to change to the other party. It is an issue that who is the most rightful owner to sell or hold before the sale took place to you and after also. The authorities may have felt that your seller was a cheater, therefore they have given the ownership to a lesser legal claimant than to a cheater who has sold the land to you.
You have specifically mentioned that the legal tenant died 45 years ago and was not married at all. When you know these many details, how did you buy this land in the first place. You have completely concealed the vital fact that whom you did buy this from. I presume that you definitely know all these facts and yet created some sale document in your favour and occupied some vacant land.
Yet knowing all these, and also hiding so much of vital information from your side as mentioned above, still you want to raise this kind of a foolish issue in this forum and expect to receive some free consultation from every one. I am sure that you mave consulted many advocates and might not have received any positive opinion.
Please note that the old saying that " you can fool some people for some time but not all the people all the time". May be the one who got it changed the property in his name is not a fool in first place and secondly he is wiser than you are in the land grabbing cases of Hyderbad. It appears that he is a better land grabber than you are.
I guess that sooner or later he will get a court injuction to take possession.
Bad luck to you.
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