My friend took tata sky just 30days ago.
He tried to register for TATA SKY portal but got error message regarding his RMN .
validationFailure Sorry! The RMN you have entered does not exist on our system. Please check the RMN and re-enter. If you still face issues, kindly call our Helpline on 1860-208-6633 to register your mobile number & then proceed with registering on www.mytatasky.com