Paytm — Fraud call

Address:	Dehradun, Uttarakhand, 248001
Website:	paytm.com

On 6th august 2016, I had submitted my complaint against paytm for not refunding my money. immediately after submitting my complaint I received a call from this number [protected] acting as a paytm representative.
Person on the phone asked me about my complaint and prompted me to share my 16 digits atm card number, assuring me safety of my card
then asked me expiry date of my card. I told him that he is sounding phishy and this information is not sharable but then he asked me ccv no
I told him that i m gonna contact my bank. suddenly he disconnected the phone
Now I am feeling cheated !!
is this paytm or consumer complaints site who is making this type of phone callls??????????
the information he asked me, are confidential and not to be shared.
I want paytm or consumer complaints website to look into the matter. and assure the safety of the customer.
kindly update regarding action taken against customer care representative who was asking for my atm card credentials(card no, expiry date and ccv no)