Airtel has really bad service. I have two of their set top boxes(cust id 3005825212) which do not work even if there is a drizzle. Their call center is extremely difficult to get through... calls drop frequently, you are put on hold for atleast 10-15 minutes, and the staff keeps speaking well rehearsed lines.
I have no service in both my set top boxes for the last 4 days, have made 8 phone calls to them but I am still waiting. All in all stay away from any airtel product. They promise the moon and give you NOTHING.