Stolen property

My wife bought a property in the year 2000 by a registered sale deed but she died in 2007. In 2009 by virtue of inventory proceedings court granted ownership in my name and that time my kids were minors. I was staying abroad and return back to country in 2021 and found that my property has been sold in 2010  to another person by same fellow who sold property to my wife. Now my property in possession of this new buyer. How  Am I entitled to get back my property? How I will get it back?