The WES website has a tool you can use to tell you what documents you'll need: http://www.wes.org/required/Thank you for your reply, should I need to use postal service to send this document to university.
Secondly this form is enough or I need anymore document like degree transcript also get attested from university .I am not sure what isay make sense. I mean for phD case, do I need only this form attested or any other documents related to phD?
For me it was the PhD certificate sent by myself and then the above form sent by the university and that was sufficient. No transcript was sent as PhDs don't ncessarily have transcripts. If you got one then the chances are you'll need your university to send that, but the instructions are all in the above link - don't take my word for it, just follow the instructions provided by WES.