The problem is every one is very happy with BSNL's unlimited plan. And that to with no fair usage policy. Other private players cannot compete with the price of Bsnl. That is the main drawback of the private companies
The reason you cant access is bcoz it isnt officially launched and on the contrary the tata and other telecom companies are ordered to stop their 3g services due to lack in security
FRC 120 is for mobile and if you want to use the sim in datacard you should have done frc 119/-
In pune circle for 6 months validity its 4200 "recharge" not "topup"