How To Do:
1. First of all Activate any small 3g pack with long validity. like 45rs pack2. Download and install Hex VPN 1.1 on your pc. You can download Hex VPN 1.1 from below link, provided at the end of the post.
3. Now make a connection by using the default mobile office APN as your access point.
4. Once you are connected, open hex VPN and connect to any server to get the free unlimited 3g on Airtel.
That's it, :) Now you can browse as much as you want without your data balance being deducted. So here you go, now you have got unlimited 3g for 30 days at just Rs.45 cost.
Important Points To Note:
- Reconnect the connection every 45 minutes, otherwise this free unlimited 3g trick will be blocked on your Airtel SIM.
- It deduct only 400kb every time when you connect.