BSNL GPRS Get 3G speed in 2G cost!!

First all you used 2G data unlimited recharge vouchers for 3G like Rs.274

But i think it stopped working. Now if you recharge with it . It gives slow speed like 2G.

So to use this trick with 3G speed use my trick.

1st recharge with Rs 274 of unlimited recharge voucher. It gives 2G speed.

Then
recharge with Rs. 10 3G voucher. Now u get 20mb with 3G speed. If not cal c.c.

Again recharge with rs 98/2gb recharge voucher. & thats trick.
Now surf & dload with 3G. Ur 2GB wil not end cause u all ready recharged with unlt.

Now u get 3G unlimited with 3G speed for 1month.