pandey sir i want to know ...that i hav to buy the bsnl 3g sim for getting speed upto 3.1mbps in micromax 300g usb modem right now i m using 2g sim with 3g network which provide me the speed upto 800kbps(dwn 20-30kbps) but i want to get more download speed upto 500kbps so plz provide me the solution