BSNL 3G

There are two 3g tricks based on Mobile phones!
For 5230,e90,n79,n81,n82,e55,n95,n96,e63,n85,5700, e66,e71,e72,e75 5320, 5800,e52,e65,n95,n96,n97. Samsung   i680,   i550, i450 and sony erricson vivaz users use the following trick:

 *Set bsnlwap as ACCESS POINT
 *Go to network settings >  network mode >  select gsm band!
 *go to web browser and open any site. I would prefer www.airtelgprstricks.co.cc!
 *Now minimize your web browser(don't exit just minimize).
 *Now go to network settings again > network mode > select umts.
 *now u will get a flash message says that ur last call cost is 0.01 INR.
 *Thats it for your phone. U can use every application with this trick. U can use it on pc too. You just have to follow the same procedure for PC also!
For 6680, n70, 6630, n73 users:

 *Go to network setting and select dual mode.After getting 3G network just minimize it!
 *now go to any web browser and open any site.
 *Again go to network setting and select network manually. By doing this you will find all available networks.
 *Now select any other network except cellone 3G. For example select airtel. Nothing will be happen. Now again select cellone 3G.
5) now u will get a flash msg that ur last call cost is 0.01 INR.