HI Manjeet,
first, as gm said, dont post personal details, as it may be used for unscrupulous means by hackers, etc.
Second, try the following steps, for solving your problem:
1) If your Graphic Card is using Generic Drivers, i.e. default drivers installed by Windows, then, such a problem arises.
Solution: Download the Drivers for the Graphic Card and install that driver.
(Ex. If your Graphic Card is Nvidia 9500 GT (any brand like XFX, Palit, Zotac, etc etc), go to Nvidia site and download the drivers for the card, depending upon the OS ur using.)
This solves the problem 99% of the time.
&
2) If problem Persists,( i dont think so after the above step

) check whether, direct x is installed or what version is installed. Do this step Start>Run>dxdiag
Hope this solves your problem. HAPPY GAMING!!!
Keep us informed.
IGN: Rainbow
IGT: Quanato
IGC: Archer