Doraiswami Ramkrishna, popularly known as "Ramki", hails from India with a B(Chem)Eng. degree from Bombay University in 1960 and a PhD (1965) in Chemical Engineering from the University of Minnesota. He taught for 7 years at the Indian Institute of Technology at Kanpur before returning to the US in 1974 and joining Purdue University in 1976 as a full Professor. With Neal Amundson, he published a book on "Linear Operators in Chemical Engineering" (Prentice Hall, 1985), and subsequently his book on "Population Balances. Theory and Applications to Particulate Systems in Engineering and Science," (Academic Press, 2000). He has published over 250 papers generally in the area of application of mathematics to chemical reaction engineering, biological sciences and particulate processes. He has won numerous A.I.Ch.E. awards (Alpha Chi Sigma, Wilhelm Reaction Engineering, Thomas Baron, AIChE Fellow), the Senior Humboldt Award, Fellow AIMBE, Honorary Doctor of Science (U of Minnesota), UDCT Diamond and Platinum Award of Bombay University, and was elected to the US National Academy of Engineering in 2009 and as a Foreign Fellow of the Indian National Academy of Engineering in 2011.