Latest 2010 tricks and hacks for Airtel for Airtel Free HelloTunes For One Month New working trick of 2010:
I am very happy to post the new hello tune trick. It doesn't work for the series 999 and 9944 and it works well for other users of Airtel

Below are the steps to follow,
* Call 543211888 From Your Airtel Number
* Select the song
* Activate as Your Hello Tunes for free
* That's it