His research focuses on sustainable biomass feedstock supply logistics systems; preprocessing (Pelleting, Granulation and Torrefaction) and thermo-chemical conversion technologies and development of Cellulose NanoFibrils (CNFs) based gas barrier films for food/biomedical packaging applications. His group is also focuses on the sustainability assessment of fuels, chemicals and bioplastics and composites. Dr. Mani has authored and co-authored more than 60 journal articles, book chapters, and technical reports, 3 patents, presented more than 100 conference presentations, invited talks and workshops. He is also serving as an Associate Editor for the Transactions of ASABE.