AIRTEL 3G FREE 10 GB DATA TRICK

UPDATE: TRICK EXPIRED
Here I am
going to share one working airtel trick .With this trick
you can use 10GB data for free. The trick is simple
and I think there is some bug in Airtel
server.Unfortunately This trick is only for some states
Follow these steps to get 10GB data usage in
3G network
SMS 3G to 121
Reply 1 to get 3g plan info. about data plans
After sending sms you will receive
following message.
1- Rs. 8 Free 10MB
2- Rs. 45, 30 Free Minutes
3- Rs. 94 Free 150MB
4- Rs. 23 Free 30MB
5- Rs. 63 Free 80MB
6- Rs.1250 Free 10GB Plan
7- Rs.101 Free 200MBPlan
8- Rs.201 Free 500MB Plan
9- Rs.451 Free 1200MB Plan
10- Rs.750 Free 4GB Plan
11- Rs.675 Free 2.5GB Plan
Now select 6 [Rs.1250 Free 10GB Plan ]
Reply 1 to conform activation of 10GB data
plan
After that you will Get 10GB Absolutely Free
For 1 Month.You will get speed Up to
7.2Mbps. To Check Data Balance Dial
*123*11#.This trick is Working In
Tamilnadu & kerala

UPDATE:This trick has been blocked by airtel.