My Google webmaster tools/content analysis shows 4 URL Duplicate Meta descriptions /entertainment/ghajini-aamir-khans-new-hindi-movie/ /entertainment/ghajini-aamir-khans-new-hindi-movie/comment-page-1/ /entertainment/shahrukh-khans-rab-ne-bana-di-jodi-is-the-biggest-releases-of-the-year-2008/ /entertainment/shahrukh-khans-rab-ne-bana-di-jodi-is-the-biggest-releases-of-the-year-2008/comment-page-1/ This 2 URL shows same content and comments, therefore Google penalize my blog (traffic reduced 800/per day to 30). How to remove this URL - /comment-page-1/ (I am not creating this URL)
Disable comments on that article? I don't think this duplicate meta tag really caused the drop from 800 to 30 a day though. While it should be addressed, this is a pretty minor issue.
File for reinclusion through webmaster tools However, I strongly suspect that the reason for your penalty is not the presence of the comments page The above quote is from Google's official guidelines/policy. In your case the intent of the duplicate content is NOT to be deceptive and manipulate search engine results. Hence you would not receive a penalty for that. Millions of wordpress sites have similar structure for comments and I have not seen any site getting penalized for this before. So identify the actual cause for the penalty and fix it.
The reason for the penalty is indeed duplicate content and frankly I'm quite surprised you haven't realised it yet. Almost all the articles in your blog are copied. This one for example http://www.articles2u.com/mobile-phones/nokia-n97-worlds-most-advanced-mobile-computer/ has over 250 words copied from http://fikriadnan.wordpress.com/2008/12/03/nokia-n97-high-class-smart-phone/ Delete all the copied articles and write 100% unique articles in your own words, if you want the penalty to be removed.
Most of the my articles unique and some part copied from press release. Some one suggested that 100% duplicate articles site only penalized by google.
In other words, what you are saying is, If I copy 475 words of a 500 word article and write 25 words of unique content, Google will not penalize my site. Unfortunately, that is not the case.