Krishan Saigal, a gold medallist in engineering and an M.P.A. from Harvard, joined I.A.S. in 1954. After retirement he worked for over a decade,in international organizations on matters relating to the oceans and the environment including climate change and sustainable development. Books by him are Policy Making in India, Vedic Management, Science and System of the Upanishads, God and Goddesses in Hinduism and Sustainable Development:The Spiritual Dimension.