even if you are heavy user, still you get same speed! at least charge 1000 Rs (in Britain when I was there, for around 10-12 gbp you can get decent amount of data and unlimited local calls).. so India doesn't have cheaper data anymore.. what we have is slowest speed but 1 gb a day!
Chalata hai attitude is exploiting indian users.
btw, I use to pay rs 1000 per month with BPL mobile when got my first job and most of it was monthly fixed charges ... (5 rs incoming charge !!)