My installed Wordpress have 4 custom post type and 1 default post type. Basically what i want is that the author can also access particular one custom post type. Author must not see other post types.
As linked to in the other comment by @AXheladini; you will need to set up Roles and/or Capabilities. Once that is done use the function
current_user_can() (codex page) to allow or deny the actual page.