Airtel is giving free 3G - december 2011

Airtel is providing free 3G to it's users since last 2 days without any hacks.
I don't know if this is because of a bug in their system or they are doing this on purpose.
Here's the simple procedure.
- Activate 3G by sending 3G to 121 ( skip if already activated )
- Once 3G is activated, send 3G to 121 again. You will receive a 3G subscription menu.
- Selected any desired 3G plan ( 10 GB plan is preferred )
- Confirm your request.
- Wait for the plan to activate.

It will be activated but your money won't be deducted.

Note: same steps can be done by calling 121 also.
Try this on low balance SIM. I personally tried this on 0 bal SIM and it worked.

Enjoy free 3G with Airtel