Prof. Tarun Kumar Lohani is a researcher at Arba Minch University, Ethiopia, specializing in hydrology, groundwater science, watershed management, and geospatial–machine learning applications for water resources. He has authored 77 peer-reviewed publications, receiving 665 citations with an h-index of 14, reflecting consistent scholarly impact. His work addresses groundwater quality, recharge dynamics, land-use change, sedimentation, and sustainable water management in major Ethiopian basins. Lohani actively collaborates with a wide international network of researchers 113 co-authors, contributing to interdisciplinary solutions for water security. His research supports evidence-based policymaking, sustainable resource planning, and climate-resilient development in water-stressed regions.