Wordpress child pages not working

I am creating a wordpress CMS and I have added multiple pages under one parent page. I am generating the links for all the child pages of a page and then when user clicks on the links, they should be able to open the child page. How ever when I click on the links, the index page is opened and no child page content is displayed. May be it is due to the use of the .htaccess file. I dont have any knowledge of htaccess. Any help?

?php
            $pages = get_pages( array( 'child_of' = $post-ID, 'sort_column' = 'post_date', 'sort_order' = 'desc' ) );

            foreach ($pages as $page) {
            ?

                div class="contentarea"
                div class="leftside"img alt="" src="http://zom.jtechsolutions.co/wp-content/themes/zone/images/pic_1.jpg" //div
                div class="rightside"
                h2?php echo $page-post_title; ?/h2
                ?php echo substr(strip_tags($page-post_content),0,50); ?

                a href="?php echo get_post_permalink($page-ID); ?"Read More.../a

                /div
                /div

            ?php

                }
            ?  

.htaccess

 # BEGIN WordPress
    IfModule mod_rewrite.c
    RewriteEngine On
    RewriteBase /
    RewriteRule ^index\.php$ - [L]
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule . /index.php [L]
    /IfModule

# END WordPress