RBI's decision to bear the hedging cost on FCNR-B deposits and exempt banks from maintaining the cash reserve ratio and statutory liquidity ratio against those deposits would save around 300 basis points of operational cost for banks, senior bankers said. "I have told our team to raise FCNR-B rates by 150 basis points to start with. We can increase rates up to 200 basis points ," Canara Bank managing director Brajesh Kumar Singh told ET.