I used get_comment() but its parameter is $comment_ID which I has to enter manually for previous comments from wp_comments instead of that I need to get current comment means last updated comment author name based on the post_ID. However wp_posts and wp_comments are related with post_ID and comment_post_ID, so I can use SQL query to get comment_ID I tried $wpdb->get_results('select comment_ID from wp_comments where comment_post_ID = 1') its even manual process but at-least I want to pass comment_ID by fetching from database but could't do that query results nothing so is there any way to get current comment_ID for a post_ID I can get post_id by $post->ID.