Hi, Jignesh,
Thanks for the comment. I should have added that part too.
Assembly can be added to the GAC by using .NET framework 2.0 Configuration. This is listed under Control Panel-> Administrative tools. Open it and expand .NET Framework 2.0 Configuration- expand My Computer. Select Assembly Cache. Click on the second link Add an assembly to the assembly cache link in right pane. Browse the assembly and add. Done!