A Comparative Grammar of the Dravidian or South-Indian family of languages is a book on comparative linguistics written by Robert Caldwell, the Bishop of Tirunelveli. First published in 1856, the book is considered to be a breakthrough in Dravidian studies. It is the first-ever detailed work to examine the similarities between the Dravidian languages. Highly acclaimed, the book is still regarded as the best reference work on Dravidian philology. The book is believed to have had inspired the Anti-Brahmin and Pure Tamil movements of Tamil Nadu.
- Sebeok, Thomas Albert (1972). Current Trends in Linguistics. 9. Walter de Gruyter. p. 312.