I use airtel prepaid in my mobile phone. I activated Instant GPRS for Rs. 20. It is very slow. I downloaded only around 1 MB, and after that, the connection became very slow. Rs.20 for 1 MB is like day robbery. They get money from us and provide poor service. Thus they have become very rich by cheating us. The stock has moved from Rs.50 to Rs.750.I think it is my money.