Thank you, Govind. While sending from the courier office, what's the from address we need to add?
Do not send it from random courier office. Ask the staff about the "Registered postal of Anna Universtiy" ( The postal service from which AU sends it's official post. Most probably it is the post office on campus. Send it from that office itself.
Regarding the from address, You will receive the transcript in a sealed envelope from them, most probably with CoE's address as sender. If it is not there, then add CoEs address as the from address (Its the same address we used for DD).
Please do not use your name and address at any cost as it will mean that the candidate is sending the documents, not the university. If WES is strict on this new change then they might not accept the document if the from address is not of the University.