This field study offers an in-depth exploration of Majuli Island, the world’s largest inhabited river island, nestled within the ever-shifting Brahmaputra River system in Assam, renowned for its ecological richness and cultural heritage. The field excursion will focus on understanding the island’s sedimentary environments, with particular attention to erosion patterns, depositional processes, and neotectonic influences. Participants will examine how river dynamics and tectonic activity shape the landscape, and how anthropogenic factors such as embankments and land use modifications contribute to its ongoing transformation. This immersive field experience combines hands-on observations with discussions on the island’s past, present, and future in the face of environmental challenges.