[Resolved]  Shriram Chits — land grab

Dear Sir,
My friend had took some money from Shriram chits,Andhra Pradesh and I had put my plot (300 sq yards) for surety(mortagage) for his loan,the Shriram chits took my original plot registration documents..At that time my plot is clear.My friend took 10 yrs to repay the loan amount to Shriram chits.Now Shriram chits returned my original plot documents,but the plot is now grabbed by someone and they built a 2 small huts in that.Can I lodge a complaint on Shriram chits for not protecting by plot all these days as they held my original plot documents,In the mean time I was unable to built a house in that plot as the documents were with Shriram chits.
So please give me help in this matter.