Policy Bazaar — repeated unwanted calls from policybazaar executives

I am not interested in buying any policy and even after telling these executives repeatedly the same, they keep calling 5-6 times a day. The executive's name is ashwin. He keeps calling from different numbers as i keep blocking their old ones.
I even asked him to delete my number from his database and never call me again but he doesn't listen.
Every company is liable to have an unsubscribe option on their website for every customer's experience but policy bazaar has a fraudulent website as they don't allow you to unsubscribe either from calls or messages.

I request strict action to be taken against the company and the executive.