His research and teaching interests are in modeling the Manufacturing Processes and Operations analysis in Supply Chain Networks. Optimization, Simulation and Computational Intelligence are the main techniques adopted by Prof. Tiwari to automate the decision support system for complex and large-scale problems in Manufacturing and Logistics System. His research interests have been supported by several industries, national and international research funding agencies. He has published more than 320 papers (H Index, Google Scholar – 65 and Scopus-50) in the International Journals of repute and he has been rated as Rank 1 among top 100 individual researchers across the world who had published research articles in International Journal of Production Research (Taylor & Francis) during the time period 1985-2010 (International Journal of Production Research, Volume 51, Issue 23-24, 2013). He is also mentioned as Top leading author in the domain of Supply Chain Analytical Techniques by Journal of Computer & Industrial Engineering (Volume 137, 2019). Recipient of “Most Influential Researcher Award” in the domain of Operations and Supply Chain Management.