Kotak Mahindra Bank — Threatening calls to all relatives and friends

Address:

New Delhi, Delhi, 226001

Hi i received a call from some arvind stating that, is calling from kotak bank, and asked for my other banks, account details, debit card no. Pin and cvv details,, once i denied, he narrated a story that i had a credit card with abn amro, which i not paid... How kotak is related with abn amro,, no statements nothing has been givn to me by any such credit card info by any bank...
For past 2 days, few of my facebook friends getting a call from delhi nos. [protected] and [protected], he is telling his name is arvind,, and calling from kotak bank, and saying that i have taken a 50 lacs of loan and all those respective friends are guarantor in that loan,, he is abusing those people and speaking ill off,, it is a request that if at all you receive any such calls please give him left, right and centre.. I have already lodged a complaint with cyber crime cell at hazratganj kotwali. I have given all the names and numbers of all my relatives and friends, where so ever this guy has called. So that police can verify from them. I further investigated and found many such complaints on google from this no. I am also sharing one of the links. Please beware