GIVING Here A Working AIRTEL FREE MO trick .Its for BIHAR, JHARKHAND, and HARYANA .oTHER State USER may ALSO try it.May it worksfor you.
Airtel users Activate MO Dial *567#.Due2server prob.its Working free in Bihar,jharkhand,Haryana.*Keep bal low & check in ur $tate.
Download The trick is in this..