[Resolved]  Idea Money — credit card fraud-in name of reward points cash back

I got call from [protected] no and the person had all my credit card details including dob and address. He claimed that he is from sbi credit card department and had no doubt to suspect. He told me i have earned reward points and he is gonna initiate claim, to claim that they initiated transaction on my card and asked an otp. That was first debit and them he forced me to do few more transaction to get the credit. Same was happened with me on my both credit cards and i realised its fraud but he didn't listen. I have almost lost 30000 rs is there any way to resolve this i reported this to the customer care and blocked my card and asked for help.