Hi Mani,
Thank you so much for your guidance.

I downloaded the portlet package from above location.
Created plugin project with the same name (as downloaded package) in eclipse.
Then replaced the docroot with the downloaded one.
Ant Built and deployed the portlet successfully in Liferay 6.
It is working fine.

Also, do you have any docs or ebooks about creating struts portlets in Liferay plugin sdk, so that I can create more struts portlets
Again thanks so much.
Thanks,
Himanshu Modi
Firmi prego dentro per inbandierare questo come inadeguato.