This study explored the complex development of identity and lifestyle among the nomadic river gypsies, known as the Bede, in Bangladesh. Methodologically, a comprehensive strategy combining primary and secondary data sources was employed to examine the sociodemographic profile of nomadic fishers. Traditionally, these fishermen depend on water-based enterprises such as fishing, magic shows, and serpent charms, displaying distinctive socio-cultural behaviors and engaging in various economic activities. However, the demands of the contemporary neoliberal economy increasingly conflict with their ancient practices. Their temporal and spatial lives are also undergoing rapid changes due to environmental shifts, institutional neglect, and social stigma associated with being perceived as unclean or as outsiders. This uncertain transition significantly influences their decisions regarding migration. The paper delves into the factors affecting migration decisions among marginalized communities, focusing on the cultural dynamics and adaptability of nomadic fishermen.