How to remove tags in google?

How do I permanently remove my post from Google's index?

• I want to remove some of my old posts from Google index. I have added  rel=nofollow tag in all my posts then from web master tool i have used  removed URL option. After two days my post was removed from Google then i  have also removed from my website. But after few days posts is re indexed in Google again which really  surprised me even post is no longer active. I want to ask how can i  removed this permanently and what is the right way to remove any posts? Please help.here is Google index result of that post https://www.google.com/#q=site:http:%2F%2Fwww.puttinout.com%2Ffacebook%2Ffacebook-open-graph-how-it-works%2F

• Answer:

  <META NAME="ROBOTS" CONTENT="NOINDEX, NOFOLLOW"> "NoIndex" is what you need to have on that page, as you're looking to get it removed from Google's index. NOFOLLOW has a different purpose. "Nofollow" provides a way for webmasters to tell search engines  "Don't follow links on this page" or "Don't follow this specific link.", depending on whether you use it on a hyperlink or as a meta tag in the HEAD section of your HTML.