CodeIgniter 3 Directory Access Forbidden

I got alert box "forbidden" for below code.
Kindly please help me.

Failed to load resource: the server responded with a status of 403 (Forbidden).

http://localhost/colourmartnew/yarns/vie...lor_counts

if('<?=@$this->produt_type_view?>' && '<?=@$this->common_name?>' != 'BARGAINS sets')
{
var cct = '<?php echo $this->security->get_csrf_hash(); ?>';
$('#results').load("<?=base_url()?>yarns/view/yarn_color_counts", {'<?php echo $this->security->get_csrf_token_name(); ?>':cct, 'group_no':track_load, 'total_row':total_groups, 'search_name'earch_name, 'yarn_id':yarn_id, 'common_search':common_search, 'fiber_content':fiber_content, 'yarn_counts':yarn_counts, 'color_value':color_value, 'display_option':display_option, 'total_yarns':total_yarns}, function() {track_load++;}); //load first group
}