He is calling and starting like this: Namashkar i am speaking from the sbi branch from where u were provided with your atm card.Your atm card will be blocked if u didnt connected ur aadhar with your atm. So tell me ur aadhar number. He called me on my unregistered number and then when i asked that tell me from which branch i took my atm he was silent. He called me 1 week before also but then i asked sbi helpline They confirmed that do not answer these type of calls as bank never do such calls.Beware of him i am attaching the recording of the call i received. Thank You.