Airtel GPRS Free for 3 Days

It work at some states onlyActivate MO when Your balance is below 10/-.Then suddenly switch off your mobile for 2-3 hrs.You will get free net for 3 days...............................................Switching off phone immediately and keeping it off for 3 hrs or more is important in this trick. Because network take time to activate service one ur fone with a small time.Before that you have to switch off.And if it send some message it will be on network in hold state upto 2-3 hrs only.After that the message will not be delivered and concidered as not delivered service and til next verification after 3 days you can use it.