Sudhindra is married to Ranjana Kumari. They met during JP movement and the couple got married in 1977. He is one of the founders of Centre for Social Research (CSR) an institution working for women and girls empowerment in India. He founded this with his wife Mrs Ranjana Kumari and few other social scientists from JNU.
Sudhindra is often seen on various news channels as a spokesperson of his party.