T24 Mobile — Annoying recorded promo calls

Address:

West Bengal

Hi, I have recently got a T24 sim card from Big Bazaar. Problem is that I am getting too many recorded calls per day about various offers from Big Bazaar. This used to be 1 call per day initially, but now has increased to 3/4 calls per day. Spoke to customer care, they advised me to register on DND, but doing so will block me from a lot of required SMSes like stock market tips, etc. My question to the service providers is that who gives them the right to forcefully call customers and promote their products over recorded ads? If it is an sms, we can choose not to read it there and then, but we have no choice but to take out the phone and check when it is a call and it really becomes a nuisance in middle of important meetings and so. I think this strategy is a direct infringement of our fundamental right and want to know how to file a complaint against these service providers.
Please reply back to my email [protected]@eircom.net about the procedures involved as I really want to take this matter forward.

Thanks
Soumyajit Dasgupta