Ranjan Ramasamy graduated from the University of Cambridge, UK and then obtained a PhD also from the University of Cambridge. He has since held academic appointments in the UK and abroad including Australia, Sri Lanka and the USA. He was the Chairman of the National Science Foundation of Sri Lanka, Professor of Life Sciences at the Institute of Fundamental Studies in Kandy in Sri Lanka, Professor of Biochemistry in the University of Jaffna in Jaffna Sri Lanka, Professor of Immunology in the University Brunei Darussalam Medical School and held institute/ university appointments at the Scripps Clinic and Research Foundation in La Jolla in the USA, University of Nairobi in Kenya, King Faisal University in Dammam in Saudi Arabia, the Queensland Institute of Medical Research in Australia, Anglia Ruskin University in England and the London School of Hygiene and Tropical Medicine in England. He has 200 publications in fields pertaining to Medical Sciences.