I am using Reliance internet through CDMA network. They allow unlimited internet browsing for Rs. 1800/- per month. But speed is not good always, at times, have to wait for simple upload.
BSNL have started providing DataOne Broad Band internet in our exchange. I am plaing to switch to DataOne, still plan to keep Reliance connection (downgrading) as a backup connection in case of BSNL have any problem.
BSNL is said to be of good speed, anyway have to wait and see.
They even have a 60 day trail broad band connection.