Problem solved.
But if I tell you the solution you may laugh.
Uninstall the software that I had earlier and which was causing a problem.
Disable my Toshiba software that is native to my laptop.
Re install Reliance R-connect software but this time select LG7230 as the phone model. (Even though my actual phone was LG 5130)
And presto when the laptop was restarted, the thing worked and you rae reading this mail.
( My data cable has the markings "ADLG 06 suitable. For LG 7230/6000")
RaguDevi