Prof. Dhiraj Kumar Mahajan is a Professor in the Department of Mechanical Engineering at IIT Ropar, where he works at the interface of mechanics, materials, and manufacturing. He is also an Associate Faculty member at the Centre of Research for Energy Efficiency & Decarbonization (CREED) and the Centre for Applied Research in Data Sciences (CARDS). 

Dr. Mahajan earned his PhD in Solid Mechanics from IIT Kanpur in 2010, followed by post-doctoral work at the Interdisciplinary Centre for Advanced Materials Simulation (ICAMS), Ruhr University Bochum, Germany. His research interests include hydrogen technologies, mechanical behavior of materials (including hydrogen embrittlement), sustainability, energy transition, and applying AI/ML tools for materials discovery.

He has contributed to many sponsored and consultancy projects in domains such as fuel cell vehicles, hydrogen storage, polymer membranes, bioresorbable stents, hydrogen embrittlement–resistant steels, and related materials innovations. In addition to research, Dr. Mahajan has been active in entrepreneurship, having co-founded startups incubated at IIT Ropar, and in institutional service including roles in training & placement, corporate relations, and innovation/acceleration initiatives.