How To Add Custom User Role In WP

add_role('applicant', __(
   'Applicant'),
   array(
       'read'            => false, // Allows a user to read
       'create_posts'      => false, // Allows user to create new posts
       'edit_posts'        => false, // Allows user to edit their own posts
       'edit_others_posts' => false, // Allows user to edit others posts too
       'publish_posts' => false, // Allows the user to publish posts
       'manage_categories' => false, // Allows user to manage post categories
       )
);