Hi Thiva,
Have you made your launchpad work before to any example programs? There should be a readme first file for this launchpad that will guide you to run the pre-loaded example program.
[quote user="thiva sudha"]in my pc device manager no drivers installed.[/quote]
Connect your Tiva launchpad to your PC and post a picture of you Device Manager here. If you have not installed the Stellaris ICDI drivers, download from the TI website and install the drivers.
-kel