Published a blog on Medium, about  "Why Don’t Tamil People Have Last Names?"

It’s the result of one of the world’s greatest social reform movements to de-stratify society.  If you know an Indian’s name and you instantly know their religion, ethnicity, and caste (a proxy for socioeconomic status).
https://medium.com/@aravindnk/why-dont-tamil-people-have-last-names-2d15a6490abc