He has authored numerous books and articles on Dravidian linguistics and literature. Some of them are: •
Comparative Dravidian Phonology, Published by Mouton, ASIN: B0006BZAIK •
Dravidian Linguistics: An Introduction, PILC (Pondicherry Institute of Linguistics and Culture), 1990 •
Tamil Literature, E.J. Brill, Leiden, 1975, •
Companion Studies to the History of Tamil Literature, Handbuch Der Orientalistik Series, Brill Academic Publishers, •
The Smile of Murugan: On Tamil Literature of South India, , Brill Academic Publishers (not to be confused with
Michael Wood's book "The smile of Murugan: a south Indian journey") •
The Poets of the Powers: Magic, Freedom, and Renewal, •
Literary Conventions in Akam Poetry •
Two Tamil Folktales: The Story of King Matanakama, the Story of Peacock Ravana,
UNESCO Collection of Representative Works: Indian Series, •
Lexicon of Tamil Literature, , Handbuch Der Orientalistik, Brill Academic Publishers •
Nilgiri areal studies, Acta Universitatis Carolinae, Charles University in Prague,
Karolinum Press, 1st ed edition (2001), •
Introducing Tamil literature, ASIN: B0007JK3TC •
Ananda-tandava of Siva-sadanrttamurti: The development of the concept of Atavallan-Kuttaperumanatikal in the South Indian textual and iconographic tradition, Institute of Asian Studies; 1st ed edition (1985), ASIN: B0006EL29I •
Introduction to the Historical Grammar of the Tamil Language, Oriental Institute in Academia (1970), ASIN: B0006CIL44 •
The Irulas of the Blue Mountains, Foreign & Comparative Studies (June 1988), •
Tamulica et Dravidica: A Selection of Papers on Tamil and Dravidian Linguistics, Prague: KAROLINUM/CHARLES UNIVERSITY PRESS, 1998 ==Bibliography==