This is my personal experience with airtel digital tv. Airtel DTH is the worst is the worst in terms of customer support. Never go with them. If you are thinking of purchasing it, do not go for it.
They will keep you waiting while you call their customer support team and playing their useless airtel music Better to go for other DTH service provider, Videocon, Tatasky, Reliance Big TV or Dish TV
John B