Airtel Free Mobile Office Trick

send sms
NJOY TO: 52696
one sms will be sended on your mobile that "Your 24 hours free gprs service has been aactivated after 24 hours u will automaticala be shifted on 10rs plan with 3mb download every day there after 30p/100kb \"
Yo just need to do is before 24 h you must have less than 10 rs in your phone .
you will automaticaly shifted to ungdlimited plan...