Freezone and it's powered by google. It is a data free service powered by google and it allow you to make searches via google search engine,connects with your friends on google+ for free.
To get it rolling, you can use your airtel line
==>First of all, you need a google account, so if you don't have any,
register one here
==>Visit g.co/freezone your mobile
==>As long as you see the green bar displaying "free page" at the top
of your screen, you won't be charged for using Free Zone.