Under which title in CV should I list a paper accepted in a conference? I had sent a paper for a conference and it was accepted recently. I am wondering under which title I should mention it in my CV? Since it will be published in April so I can't use the title "publication", so which title should I use?
For papers that have been accepted, but not yet published, it is common to mention them as "accepted for publication". This is similar for journals and conferences.

So in your case, you could mention the paper under a section titled "accepted for publication", or you could add this information at the end of the paper entry:


  
  author name, paper title, conference name, year (accepted for publication).
  


Another option is, as mentioned by @David Ketcheson, to list such papers as "in press".