It's possible that:
* It's a specific title for a particular poet or writer: If this is the case, you might need to provide more context, like the era or the type of work this person is known for.
* It's a made-up term: It's possible someone created this title for a specific purpose.
To help me understand what you're looking for, could you provide more information, such as:
* What is the context of the term "Tamil Viyasar"?
* Where did you encounter this term?
* Is there any additional information you can provide about the person or work associated with this title?
With more context, I can assist you better in identifying who is called "Tamil Viyasar".