1) install ur bsnl 3g data card software and its driver
2) then rename c:/program file/bsnl 3g data card/bsnl3g.exe example
bsnl3g.exed any thing
Which ur computer can nt identify
3) and download vcell data card software it is easily download from google
or https://sites.google.com/site/ilsami...attredirects=0
4) and install it
5) nw plug in ur data card and open vcell software.