Follow these steps to surf free net from pc with Airtel:
1. Download Raptor VPN Software FROM HERE and install it.
2. Visit Official Site of Raptor VPN (click here) and register a free account.
3. Now connect through airtelGPRS.com via PC SUITE.
4. Run the Raptor VPN software in pc, it will be minimized in the system tray.
5. Now right click on RaptorVPN icon in the system tray (it looks like a small globe) and click connect.
6. Now it will ask for username and password. Enter the username and password you used while creating account on RaptorVPN official site.
7. Now enjoy unlimited internet for free...!!