This is a bit speculative:

I don't think Sowell, Friedman or Hayek will find much acceptance by the wider Tamil populace even if they're translated.

Mises would, if explained well. It's tough. But praxeology, methodological individualism would require a mastery of Tamil.

Hoppe, maybe. Also tough. Kantian ideas and argumentation ethics are a challenge. Will have to go through Tamil philosophy in depth.

But Rothbard. Boy would HE be accepted readily.