Friends !!!
I have Free Gprs trick For Airtel working on proxy.
If You Are Using Pc Then follow this step.
(1) Keep Balance less than 30 paise.
(2)Connect Using Default Mobile office settings.
(3)Open Your browser Mozilla firefox than Tools>OptionAdvanced>Network>Settings>Manual Proxy Settings.
(4) Then Use Following Proxy And Port.
proxy: 66.90.76.90
port: 80
(5)open 0.facebook.com And In Url box Put Your Site Name and Enjoy.
For Them Who is Using Mobile . Follow My Steps
(1)Keep Balance less than 30 paise.
(2) Create Settings Manually.
Proxy: 66.90.76.90
port: 80
APN: airtelgprs.com
Home page: 0.facebook.com 
