ICICI Prudential Life Insurance — Fraudulent calls from someone pretending to be terminated officer

I've been receiving calls from someone claiming to be working under icici prudential life insurance. And states that my father (who is no more with us)purchased a policy on my name and that he submitted the first installment of 50000 in 2012. But failed to follow up and so-called policy was scheduled to mature in 2020.
Now either I can pay 50000 for one time settlement or I can continue the plan by paying some fine.

The number used by called = [protected]