Hi friends here is a great tricks for BSNL user Enjoy 3G Speed @ 2G Packs.
  • 2 GB @ Rs. 98.00
  • 10 GB @ Rs. 270.00
  • There is no unlimited plan for BSNL 2G or 3G
These plan are for BSNL 2G user but you can enjoy 3G speed
To use this buy a fresh BSNL 3G SIM (Do not activate 3G in 2G SIM, it may not work).
You will get Rs 625.00 balance for internet uses (uses charges Rs 0.04 per 10 KB)
After end of the balance TOPUP with the above  mention plan (do not Recharge, it is TOPUP)
if you topup with Rs. 98.00 then you will get Rs. 8192.00 Internet balance.
To check your BSNL 3G balance dial *123*10#

It is working Kolkata and West Bengal and Many other state.

Please Confirm after checking what is the position on your state.