<P> The fourth Commission was constituted in March 2002 with Dr. Bizay Sonkar Shastri as the Chairperson . </P> <P> Consequent upon the Constitution (Eighty - Ninth Amendment) Act, 2003 the erstwhile National Commission for Scheduled Castes and Scheduled Tribes has been replaced by </P> <P> (1) National Commission for Scheduled Castes and </P> <P> (2) National Commission for Scheduled Tribes . </P>

List of chairman of national commission for scheduled castes