Dear Mr Bansal,
As rightly advised by learned advocate Sh. Pawar, the bank is guilty of deficiency in services for losing the documents relating to property. Therefore, for compensation for mental agony and harassment, consider filing consumer complaint in consumer court.
Further, get a DDR registered with the local police station. The police will file a DDR and not an FIR in this case since FIR is only filed for criminal offences and not where documents are alleged to be lost unless you want to charge an employee of bank of theft of documents.
Shubham Bhardwaj (Advocate)
District & Session Court, Chandigarh
Punjab & Haryana High Court, at Chandigarh
Disclaimer:- Opinion is only for guidance.