Hi you never need to dial for airtel caller tunes at rs.6/min again.it free guys.you just have to message the song name,film name or any hint related to the caller tune song and you will get the search results and you could easily select the song from the list.

the free dialer tune search no. is 543215(its free)
for eg. kanthasamy to 543215
2nd method of search:
Dial *321# Or *121#
Then Select Hello Tunes Menu And Search Songs
3rd method hello tune search:
Now You Can Search And set Hello Tunes Inside Your Airtel Live Wapsite
Visit http://live.airtelworld.com and you will see menu's for hello tunes and their codes.

So now finding your caller tune is ultra easy and free!