Reserve Bank Of India [RBI] — fraud call stating bank manager

Address: Chennai, Tamil Nadu, 600053

Today afternoon at around 12.44 received a call from [protected], to my mother's mobile number stating that "ravi kumar, bank manager" and the atm card got expired. When i started to cross question like which bank and branch etc., he had disconnected the call. Not sure if this is the right forum, but would like to alert so that no one could get waylaid by this bogus calls.