I purchased a particular plot about 6 years back and officially transferred to my name by society while I have made wall and filled the land with earth. I have paid all the dues also.Now society is trying to change the plot saying it was in allotted to some other person and that person has brought the papers.
To whom I have to contact in such dispute (court, Govt Punjab etc).
Please advise.
I Guess court would be the best option
Can you share the name of society as well?
Sue them. May I know the name of society?
Name of the society ? you need to go to the court 
Please share the society name then members can tell you the right way.
Hi, I had similar problem and for 7 years pakistani lawyers (can't trust any in Pakistan) fleeced me for everything I had, by colluding with opposite sides lawyers. I was lucky enough to find a firm of Uk based lawyers with offices in Islamabad - who within 8 months restored my property to me- for a reasonable fee.
Feel free to contact me, raja.zaman@hotmail.co.uk or find me on Facebook Or LinkedIn , I will point u in the right direction.
Regards
Raja Zaman, from uk.
Raja ji if you cannot trust anyone in Pakistan, then why don’t you just get lost, and stay in the UK where as a Paki you are treated as you deserve.
Which society is that ? How can they do this, who gave you the possession letter or physical possession of the plot, they should adjust the person somewhere else, that is silly.