Dr. Kumar has expertise in extraction and functional characterization of proteins and other bioactive compounds from plant-based matrices. His Ph.D topic was focused on "Anthocyanins as ingredient for food industry: Strategy for extraction, Functional characterization and Enhanced stability". This research is both commercially useful and socially beneficial as anthocyanins from black soybean and black carrot act as natural colorants and have a lot of demand in the domestic and industrial market. Currently, Dr. Kumar is working on a project funded by Science for Equity, Empowerment and Development (SEED) Division of DST (Govt. of India).

Dr. Kumar has been revered with several awards throughout his academic career, including Prime Minister fellowship 2014, ICAR-Indian Agricultural Research Institute Ph.D. Gold medal, InSc Young Scientist Award 2019". ICAR's national talent scholarship and junior research fellowship during under graduation and postgraduation. He has presented his research in various national and international conferences and publishes more than 75 research papers/book chapters in national and international journals/books.