This person was called me ....and told that your atm will be block if you not give your atm and adhar card details right now....when i asked him about from which back call center are you speaking....he say somthing umiya call center....so i refused him to give my details....as he doesnt give me satisfied answer....so i think he is a spammer....cheating with people....so take respective action against him....so other people will be save from such frauders