• Property boundary fixation

I have a land in solapur 48000 sq feet. My uncle have property of 60000 to right side of my property. My uncle already sold his 60000 sq feet land and its city survey is done.now he sold 30000 more sq feet land to other person by pushing my land further ahead(atikraman) . Boundary fixation is not done ever for that entire survey number. We have filed case in court saying that we need boundary fixation to be done. Order for land record department had issued and they did measurement but they didn't do boundary fixation. People in the department say that there are some flaws in the record that needs to be corrected and we need orders to proceed. My uncle did not show up in the court so court declared it as exparty. Now problem is person who bought 30000 sq feet land from my uncle doing construction in our place. And we are unable to put stay on that..my lawyer says we can't get stay order to the someone else's place untill you prove that place is yours and i am not getting how should i bring stay order on that..can you please provide some guidance?