How do I get the transcripts from University of Madras if I live abroad?

You should use some service provider such as “Mail Transcripts” or “Clear Transcripts” for the same. These services are online and quite seamless with a very simple process. 

• Fill the online application in the portal and submit the required fee.
• Send your original documents to the university. Here the service provider will come in handy as they will do the talking with the university on your behalf. 
• You have to submit the notarized documents to the service provider after they come up with a solution.
• Then you will get your transcripts at your doorstep without much fuss. 
• They will send your transcript to WES/IQAS without needing your intervention.

You can do all this work by yourself or through some of your acquaintances as well but it will take your precious time on unnecessary work.