Are you trying to remove a negative link that is on your site that you would like to restrict Google and other search engines from reading? Or is someone negatively linking to your site? Please elablorate.
I think he is asking how to remove links like this http://www.hindustantimes.com/I-T-dept-finds-evidence-against-Welingkar-boss/Article1-629419.aspx from the internet. Just a hunch though.
I think you are asking to get rid of negative reviews. You dont have an option to remove unless you ask the webmaster to remove them. You can try to bury the negative reviews by building links for positive review or other related or unrelated sites.
Best way to remove links from indexing is to move it to the status 404 . whenever some files get 404 status that will automatically deleted from your index. so simply do it ,