I am Litan Dey, an Assistant Professor in the Department of Civil Engineering at the National Institute of Technology (NIT) Agartala, India. Research activities bridge hydraulic engineering, geophysics, and data-driven hazard assessment to investigate interactions between water, sediment, and landscapes. Current research focuses on landslide and debris-flow modeling, open-channel hydraulics, mechanics of sediment transport, debris-flow rheology, granular flow behavior, river morphology, scouring, and computational fluid dynamics (CFD) simulations. Geophysical flow behavior in natural and engineered environments is examined through a combination of laboratory experiments, field-based testing, and physics-based numerical modeling, with the aim of improving disaster resilience and engineering design. The broader objective is to contribute to safer mountain infrastructure, resilient road networks, and sustainable engineering solutions for regions vulnerable to extreme hydrological events.