airtel free surfing and downloading....
tested by me.....

dwnload

http://www.4shared.com/file/YyR2zO4b/OPERA_free_airtel.html

settings:
.Create a new setting in your mobile
Access Point= airtelgprs.com
Proxy address= nokiaovi-cust.opera-mini.net or 80.239.242.253
Port= 80 (Remember its 80 not 8080)

Thats it……..
You may get charged 0.30 paise during initialisation.
After that you are not charged.
Working 100%.Downloading is also free.
I tested downloading a small file of 1 MB and no deduction.

Enjoy Free Browsing and downloading.
It is Working at any balance.
Try

NOTE:no gprs pack should be activated.....