S.P. Singh is Professor Emeritus, Department of Chemistry, Kurukshetra University, Haryana, India. He obtained a PhD in 1964 from University of Lucknow and joined Kurukshetra University in 1965. Singh was also associated with the University of Illinois at Chicago, USA, as a Post-Doctoral Fellow, Senior Fulbright Scholar, and Visiting Research Professor. Singh has worked in diverse areas of organic chemistry, including reaction mechanisms, organic photochemistry, mass spectrometry, and primarily, the structural reinvestigation of heterocyclylpyrazoles. He has published more than 200 research papers and reviews in professional journals. For his services in chemistry, he has received the Acharya P. C. Ray Memorial Medal and a Lifetime Achievement Award from the Indian Chemical Society. He was awarded New Millennium Plaque of Honour at the inaugural function of the Indian Science Congress in 2014.