Bro Welcome to Adtv family.
But although i am a Airtel dth customer, but your reason of Shifting little shocking for me. Because TataSky have more Sd/HD channels than Airtel. Also Tata Sky is the only DTH Most of the Time Added HD channels on the very first day.
If your shifting reason is High price, Don't like HDAF Then its justfied. But your giving reason is shocking.
But As a Airtel DTH Customer I am very happy for you. Hope Airtel Dth Fulfill your requirements.