OK this is for those guys only, who have a micromax old 310gmx modem with its supplied software..

many a times you noticed a "cannot register" so heres what i found for it..

open the micromax software..
do nothing just minimize..


now open you Nokia pc suite internet connect icon..
select manually your modem as 'Mobile connector" and enter your apn 'BSNLNET"..
and connect using nokia pc suite connector icon and not micromax..


hope it works.. working pretty well for me..