Document not release by bank

I am a ex staff of Indian bank, i have taken various loan from Indian bank against my house property document at various stage. due to some reason i was dismissed from the bank in 2011 and faced court case and case was finished against me in Sept 2016 , after dismissal no repayment was made toward loan and my all loan become NPA and handed over to Reliance ARC. in Feb 2020 RARC approach me and told me to adjust all loan otherwise they will e auction my property. they offer me OTS and with great difficulty i paid my all dues in aug 2020 as offer given by RARC in their OTS letter.I got No dues certificate issued by ARC in aug itself. after that RARC person inform me to give request letter to bank branch along with copy of NDC and KYC document for releasing documents.i have emailed request letter address to indian bank, harbour branch (loan account with harbour branch) to grant permission to indian bank udaipur branch ( where my house property paper held) to release my document as all loan are closed. sir now more than 3 month over no reply and response received from indian bank. what to do.. i have given so many reminder also but no reply received . Now RARC is telling that we have already confirm to bank that loan are closed and release the property paper.. please guide what will i do now