dear ahmed,
this is a complicated issue and any advise can be given after seeing the documents and registration certificate.
which year you bought this land ? from whom ?
is that land was undivided land or in issue before with any party before
has you taken the possesion of that land before ? or was land in possesion of person at the time of purchase by you?
Dear Querist,
1. How did you purchase via registered Sale Deed ?
2. On what basis is the person intruding/interfering ?
3. You can sue for a permanent injunction seeking an order restraining the person from interfering with your lawful possession.
Feel free to talk!