Hathway / Gujarat Telelink [GTPL] — Spam Calls and breach of privacy

It has been 1 year since I discontinued the hathway service but they are harassing me daily to renew it. It has gotten worse when I narrowly missed an accident while navigating google map and driving due to their sudden call on my phone. Is there any authority where I can complain to teach them a lesson for unlawfully harassing a common citizen and putting his life in danger because their potential business is more important than daily activities of a common citizen?
My phone number is [protected], to which they spam me daily