PhD (Cambridge University, UK). Joined NIAS on 2nd July 2004. Most significant research contribution: Pioneered the study on the societal implications of nanotechnology, and development of an atlas of Indian science. After an outstanding academic record in Loyola College, Chennai and the Indian Institute of Science, Bangalore, Prof. Ranganathan obtained his PhD from Cambridge University, UK in 1965. His academic career as an educator and researcher in metallurgy for the past four decades has been outstanding. His seminal research contributions have advanced our understanding of the structure of metals through 300 publications including books on Wootz steel and new geometries. He is currently Honorary and INAE Distinguished Professor at the Indian Institute of Science and Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore. His contributions have been recognised by fellowships to five academies and numerous awards. His interests at NIAS include materials heritage, an atlas of India in Science and Societal Impact of Nanotechnology.