Chandrasekhar, also known as Vagai Chandrasekhar, is an Indian stage, film and television actor working in Tamil language films, known for his histrionics. He is currently the Chairman of Tamil Nadu Eyal Isai Nataka Mandram. He played lead or supportive roles in Tamil films of the 1980s. He won the National Film Award for Best Supporting Actor for his role in the 2002 film Nanba Nanba. He contested and won from Velachery constituency in State legislative assembly election 2016 from DMK party.

The National Film Award for Best Supporting Actor, officially known as the Rajat Kamal Award for the Best Supporting Actor, is an honour presented annually at India's National Film Awards ceremony by the Directorate of Film Festivals (DFF), an organisation set up by the Indian Ministry of Information and Broadcasting. A national panel appointed annually by the DFF selects the actor who has given the best performance in a supporting role within Indian cinema. The award is presented by the President of India at a ceremony held in New Delhi.