Sundari has worked extensively internationally and in India as an activist and researcher on gender and health equity issues with a focus on sexual and reproductive health and rights. She has several publications including books to her credit. Sundari was co-editor of the journal Reproductive Health Matters from 1992-98, and has also worked with the World Health Organization, Geneva and its Regional Offices in New Delhi and Manila in various capacities. She was also a member of the United Nations’ MDG Task Force on Maternal and Child Health.

TK Sundari Ravindran is a founder member of Rural Women’s Social Education Centre (RUWSEC), a grassroots women’s health organization in Tamil Nadu, and has been involved in the organisation’s activities since its inception in 1981 till the present.