Dr. Mihir Lal Saha is a Professor and Chairman (From 27 August 2022 to date) of the Department of Botany, University of Dhaka. Elected second time Senate Member since 25 May 2022 to date. Dr. Saha served as Provost of Jagannath Hall, University of Dhaka from 08 May 2019 to 03 September 2024, He was the Acting Dean of the Faculty of Biological Sciences from 02 June 2021 to 15 January 2022. Joined the University in 1988 and became the Professor in 2004. Received Monbusho Scholarship and awarded Ph. D. Degree in 1998 from the Graduate School of Engineering of Utsunomiya University, Japan. Dr. Saha awarded Post-Doctoral Fellow of Utsunomiya University in 2004-2005. Also received a prestigious short-term JSPS Invitation Fellowship in 2016. Major research interests on both Microbiology, Environmental Microbiology and Microbial Biotechnology. So far Dr. Saha credited 91 (Ninety One) research and proceeding papers in different reputed national and international journals. Published 07 Seven books as supervisors of seven M.S. students thesis in the LAP Lambert Academic Publishing. Dr. Saha is co-author of a Bengali medium book entitled Anujib-Biggan (Microbiology) for undergraduate students. Dr. Saha is the editor and two chapter contributers of the Centinnial Special Book of the Department of Botany entitled "Botany: Addressing the Challenges and Oportunities for the 21st Century": Dr. Saha is the Editor of the Book "Basontika" a Centinnial Book published by Jagannath Hall (মিহির লাল সাহা, সম্পাদক: বাসন্তিকা: ঢাকা বিশ্ববিদ্যালয় ও জগন্নাথ হল শতবর্ষ সংখ্যা। প্রকাশনায় প্রাধ্যক্ষ, জগন্নাথ হল ঢাকা বিশ্ববিদ্যালয়। Dr. Saha has participated about 48 (Forty Eight) conferences, seminars and workshops in Bangladesh, Japan, USA, India, Nepal. Addressing the Challenges and Opportunities for the 21st Century: Centennial Special Book

Besides academic activities Dr. Mihir Lal Saha has been appointed as Director of Arboriculture Centre since 2012. All the plants of the University of Dhaka including the plant-beautification management of the famous Curzon Hall and road medians of the campus are routinely carried out by the active directions of the Director of the Arboriculture Centre. Dr. Saha has served as different Dhaka University affiliated Private Medical Colleges as a board member of the Governing Body.

At present Dr. Saha is the nternational Associate Member, Japan Society of Water and Environment, Japan. He was the former General Secretary of Bangladesh Association for Plant Tissue Culture & Biotechnology; former Secretary General and Treasurer of Bangladesh Botanical Society, Treasurer of Bangladesh Society of Microbiologists. Dr. Saha is the present Senate member and was previous Senate Member of the University of Dhaka for the period of 2009-2013.

Major research interests on Citric Acid Fermentation, Environmental Microbiology, Wastewater Treatment, Magnetic Activated Sludge (MAS) process for wastewater management, Biological dye decolourization, Treatment of milking parlor wastewater containing tetracycline, Bacterial and chemical pollution of river, Coliform bacteria associated with food and water, screening of indigenous protease, Indigenous Poly-β-Hydroxy-butyrate (PHB) Producing Bacteria from Different Waste Materials, Rhizosphere associated bacteria, Plant growth promoting rhizobacteria, Exopolysaccharide (EPS) & Pigment producing bacteria, Multidrug resistance bacteria, bacteria for lipase production and its biotechnological application, bacteria associated with domestic and industrial waste materials and their biopolymer production. Dr. Saha is a popular Freelance Bnagla Writer in the platform of Social Media to popularize science in Bangla with special reference to Daily Science, Biotechnology, Plant Biodiversity, Nature, Flowers and Environment based science topics.