Prof. Omkar, FNASc, has been associated with teaching for about 35 years and research for more than 43 years. He is former Head of the Department of Zoology, University of Lucknow, and former coordinator of UGC-SAP (DRS-II), DST-FIST, and DST-PURSE, and Centre of Excellence, Govt. of UP, programs. He has worked on 10 projects of state/central funding agencies. He specializes in entomology with particular reference to insect pest management. Prof. Omkar is an Associate Editor, International Journal of Tropical Insect Science, Springer Nature and chief editor of the Journal of Applied Bioscience; besides being president of the International Society of Applied Biology.
He is a recipient of several awards, like, Saraswati Samman by the Department of Higher Education, Govt. of UP, Prof. T. N. Ananthakrishnan Foundation Award, Rescholar Award of Excellence in Agricultural Entomology by The Association of Entomologists, Prof. G.S. Shukla Gold Medal by the Academy of Environmental Biology, Dr. S. Pradhan Memorial Lecture Award, by the Entomological Society of India and Division of Entomology, Indian Agricultural Research Institute, New Delhi, ACCLAIM and UDDEPAN Awards from the University of Lucknow, Lucknow. He is a Fellow of The Entomological Society of India, Zoological Society of India, Society for Biocontrol Advancement; and Fellow of The National Academy of Sciences India, (FNASc), besides many more. He has 18 books to his credit. Prof. Omkar has published 237 research papers, 10 Review articles, 42 reviews as book chapters, and 16 popular science articles. Prof. Omkar has guided 25 Ph. D. students. He has visited the School of Biological Sciences, University of East Anglia, UK (2006) for three months and Department of Zoology, University of South Bohemia and Czech Academy of Sciences, Ceske Budejovice, Czech Republic (2016).