Step 1)First of all Remove all the Airtel Settings like mobileoffice, airtel live from your Mobile.

Step 2) Then Activate GPRS Pack Of Rs10(100Mb) By Simply Dialling *567*1#.

Step 3) Activate This Plan Between 6pm to 6:30pm. Its very important, this is the time that airtel servers are busy.

Step 4) Use 7 Or 8 Mb data.

Step 5) Now Remove Your Sim Card.

Step 6) Then Put Sim Card Between 11:40 To 11:45.

Step 7) Now Use This 2 or 3 Mb Data (only browsing).

Step 8) Main Trick is Don't Disconnect Internet but Browse continuously And Download.

Step 9) You see Data Account Bal By Dailing *123*7# (0.00Mb) But Can Use Internet Unlimited.

Step 10) Follow This Steps Continuouly for 7 Or 8 Days
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Step 11) After 8 Day Dont Active Rs 10 Plan And Use Internet.

Step 12) Bal Must Be 0.00.

Step 13) Now Your Airtel Internet is Free With Unlimited Downloading.