This trick is very old and never to going close :)
so lets's start..
in your mobile make a seting from below
apn- airtelgprs.com
proxy:12345proxy.com
port:80
HP:live.airtelworld.com
or
HP:airtellive.com
ANd now save the seeting and make it default.
Now go to your browser and open home page or airtellive.com.
Now hooooo
a proxy page is open enter your adree and surf and download free.
Note- only work in browser not with applicatons.
AND FOR PC..
connect your modem or phone via airtelgprs.com
and go to mozila setting and set proxy.
proxy:12345proxy.com
port:80
now save and open this adress.
live.airtelworld.com
now proxy page open enter your adress and enjoy.
NOTE- BALANCE BELOW 10 PAISA