Rattan K. Datta was Advisor, Department of Science & Technology, Government of India, Project Coordinator & Founder Head of National Centre for Medium Range Weather Forecasting, a center involved in development of global weather prediction models & management of the First Supercomputing Facility in India. He was President CSI (1990-1992), President of the Indian Meteorological Society (1995-1997) and also President of section ISCA. Prof. Datta is currently President of GAMS (Gwalior Academy of Mathematical Sciences) and CEO MERIT, New Delhi.