How to add one more field in disqus form i have been installed disqus module in my drupal setup.it gives only one textarea field how to i add one more field to get subject from user.
Disqus does not provide titles, therefore, it is not possible. 

What the Disqus module does is embed the Disqus chat/comments as an iframe. For security reasons, you cannot modify/alter anything that is inside an iframe.