Navigation menu is in the form of categories on website
http://bankpo.in, none of the category pages is being indexed by Google.
I searched with exact URL for a category, still related results are shown instead of category page. I have checked Google Webmaster Tools and there are no crawling error or any other error message, so I am really confused what might be the problem.
Website is not a new one and is continuously updated, so please can anyone tell me the reason for this.