Permanent injunction

Greetings sir! I purchased an agricultural land 10 yrs ago at that time the land prices were sl*gging off and I got all the relevant documents viz. Jamabandi , Sale deed, Intkal etc but suddenly one party claimed that it's his ancestors land and I have illegally purchased that land and he appealed in court and the court granted permanent injunction against my property this person only had a document called khasra girdawari in which his deceased father's name is written I want to know that how to correct that girdawari and put it in my name and how relevant is that for selling my land and what can be the outcomes if I don't alter it?