Custom code to add meta tag in Drupal 7
In your theme's template.php file, you could add something like **/
/** * Implements hook_preprocess_html */
function THEME_NAME_preprocess_html(&$vars) {
if (current_path() == 'my/custom/path') {
$description = array(
'#type' => 'html_tag',
'#tag' => 'meta',
'#attributes' => array( 'name' => 'description', 'content' => 'here all description goes', )
);
drupal_add_html_head($description, 'description');
}
}