I want one of my page to not shown in google search but must be crawled by google bot. I used disallow in robots.txt. It didn't show my page in search result and also crawler didn't crawl the page. What i need to do. Thanks in advance.
Google won't crawl your page if you apply the 'noindex' meta data. The only reason Google crawls pages is to put the pages it crawls in it's index, it would not make any sense for them to crawl a page with it being disallowed to be put in it's index.
Yeah that's true !! Don't apply the noindex in robot.txt file otherwise Search Engine will not show the pages in search results.
You need to let Google crawl the website... and request Google to DROP the page from indexing via Google Webmaster tools. Although... the page will be visible on other search engines then.