HDFC Bank — Fraud calls

Sir,
I would like to complain about calls from " cancellations dept" of Hdfc life. When I insisted that I don't have a policy, the scamsters insisted that I have paid 60000 and bought the policy in 2013. He also sent me a policy number and telephone number of the relation manager and insisted that I call and speak with her. However, I m certain that this is a scam and would like to bring it to your notice so that you can issue a warning to other unsuspecting people.
Thank you