Krishnan Parthasarathy is former Director and Head of the Ramanujan Institute for Advanced Study in Mathematics, University of Madras, Chennai, India. He earned his doctoral degree from the Indian Institute of Technology Kanpur and done his schooling and college education in Chennai (earlier Madras). His areas of research are abstract harmonic analysis and the theory of frames. He had taught subjects ranging from algebraic number theory to algebraic topology, differential equations to differential geometry, linear algebra to Lie algebras for about 35 years at the postgraduate level at different institutions. He had been a doctoral adviser for several students and has published a number of research papers in international journals of repute. He is a reviewer for several journals as well as on Mathematical Reviews and zbMATH.