S. Nainar Kulasekaran

S. Nainar Kulasekaran (1924 – 30 July 2017) was a social activist from Tuticorin, Tamilnadu. He was involved in the Bhoodan movement launched by Vinoba Bhave. He played a vital role in protesting against illegal sand quarrying, de-siltation in the Srivaikundam dam and industrial pollution on the Thamirabarani.

In 2010, he released Tamirabarani Nadhiyum, Vivasaayigalin Urimaiyum, a book about the Thamirabarani river and the rights of the farmer with detailed work of Thamirabarani flow and irrigation.