Thank you @airtelindia. Finally I have filed a grievance report against you in National Consumer Court. Ohh, btw the docket number is 3380335. Maybe you can find it in your records now.
@cm_India I need your official email. It's been 1 month I have placed PSU RMA but you guys didn't even bothered to send me a single text or E-mail regarding the same. I can't even figure out your official E-mail.