The document discusses the constitution and functions of the Central Pollution Control Board under the Water (Prevention and Control of Pollution) Act of 1974 in India. It notes that the Act established the Central Board and State Pollution Control Boards to prevent and control water pollution. The Central Board is the main government organization for preventing and controlling water pollution at the central level. It is comprised of a chairman and other members from government and non-government backgrounds. The Central Board is responsible for advising the national government, providing technical assistance to state boards, coordinating state board activities, and planning nationwide programs for pollution prevention and control.