Sometimes we do not want search engine to index specific portion or pages of the website. So we define those pages in robots.txt file but if we found these pages in its indexed when you search, following steps can be taken to remove it completely with use of URL remover tool.

1. Use robots.txt : and block the page you want to remove. you can also use meta non archive tag to do the same. The basic concept for removing any page is, search engine crawler must not able to indexed it again so we specify those pages in robots.txt or use other meta tags to restrict its crawling by search engine bots.

2. Use URL remover tool : After making sure that crawler cannot index the page, you can submit those pages to url remover tool in Google webmaster. You can also ask for reconsideration if you want that page to  include again.