Osclass city Subdomain Not Working Plz Help

[mysearchindia.com]

hi firends, i am new in this forum. Plz Help Me 

My site is - http://classified-ads.co.in/

City Subdomain not Working, I add Wildcard (*) and edit config.php file - Code - define('WEB_PATH', 'http://'.$_SERVER['HTTP_HOST'].'/');


But Still Not Working.

Thanks