RBI — fraud call

Got a call from [protected] for atm verification. I know no bank calls for yearly atm verification. May the caller be traced? It seemed the caller was from bihar as per his accent. How he came to know that i have atm card of * bank. I asked him about the branch code of the bank he was referring to. He gave a number which was not correct. But one thing is sure these people are getting some of our data but don't know from where.