Airtel is the best answer whenever you are looking for a broadband connection. Its little expensive as compared to other broadband which are available in market. ISP service is great.
They gave me the connection in just 2 days, installation charges are little high like upto 2500/- out of which 1000/- are refundable. The guys are extremely good in installing it. Its been more than 6 months have been using it and till date I have not faced a single issue with network and connectivity.Airtel is the best.