Tikona Call for filing a case

Hello, I just received a call from Adv. Amit Thakur and he told me that tikona wants to file a case against me. I already informed them to shut the connection as I had toshift from that place. I shifted on 26 Feb 2016 and they are asking a payment of March. The lawyer is threating me that my Id's will be blocked and he has gathered my information from RBI. NEED HELP!! Whether it's a prank call or not. He told that his license no. Is A100B7936L and he is from Law firm.