Mobile office 10 Rs plan trick from airtel

Airtel Free Unlimited GPRS Trick on 10rs plan.Follow Steps
1]Remove all the Airtel Settings like mobile office, airtel live from your Mobile
2]Then Activate GPRS Pack Of Rs10(100Mb) By Dialling*567*1#
3]Activate This Plan Between 6pm to 6:30pm. Its very important, this is the time that airtel servers are busy.
4]Use 7 Or 8 Mb data
5]Now Remove Your Sim Card.
6]Then Put Sim Card Between 11:40 To 11:45
7]Now Use This 2 or 3 Mb Data (only browsing)
8]Main Trick is Don't Disconnect Internet but Browse continuouslyAnd Download
9]You see Data Account Bal By Diling *123*7# (0.00Mb)But Can Use Internet
Unlimited
10]Follow This Steps Continually for 7 OR 8 Days
11]After 8 Day Dont Active Rs 10 Plan And Use Internet
12]Bal Must Be 0.00
13] Now Your Airtel Internet is Free With Unlimited Downloading