Hello reader's, we discussed about "How to get a category in wordpress". In the below code gallery is the custom post type. For this you can create a taxonomy-gallery-category.php file. You can put the below code into this file.

     <?php
/**
 * This page shows list of all tour-region related to particular catgeory
 */
get_header(); 
        global $post;
        global $wpdb;

        $term =  get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );

        ?>

    <ul class="clearfix">
                        <?php       
                        $post_type = 'gallery';

                        $args = array(
                            'post_type'         => $post_type, /*This is where you should put your Post Type */
                            'posts_per_page'    => -1,
                            'post_status'       => 'publish',                  
                            //'paged'           => $page,          
                            'tax_query'         => array(
                                array(
                                    'taxonomy'      => $term->taxonomy,
                                    'field'         => $term->slug,
                                    'terms'         => $term->term_id,
                                    'include_children' => false
                                )
                            )
                        );

                        $query = new WP_Query( $args );               

                        $round = count($query->posts);


                                if ( $query->have_posts() )
                                {   
                                    while ( $query->have_posts() )
                                    {                               
                                        $query->the_post();
                                        $thumb_img = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), 'gallery-img-all');
                                        $post_img = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), 'full');
                                        if( $post_img != '' ) :
                                            echo "<li>";
                                                echo "<a class='fancybox' href='". $post_img[0] ."' data-fancybox-group='gallery'  title='". get_the_title($post->ID) ."' >";
                                                echo "<div class='share_outer'></div>"; 
                                                echo "<img src='". $thumb_img[0] ."' />";                                          
                                                echo "</a>";
                                            echo "</li>";


                                        endif; // end if                                

                                    }

                                }
                                else
                                {
                                    echo "No posts fount !!!";
                                }
                        wp_reset_postdata(); ?>         
                        </ul>