This document discusses several national health agencies in India that work to promote public health. Some of the key agencies mentioned include the Indian Red Cross Society, which provides relief during disasters and runs blood banks and first aid training. The Hind Kusht Nivaran Sangh works to control leprosy through education, research, and supporting leprosy clinics and homes. The Central Social Welfare Board aims to improve family and child welfare in rural areas through programs and technical/financial support.