Described here are stories of families within the borderlands of India and Bangladesh who have kin relations on the other side of the border. They are about the continued making and maintenance of kinship ties across transnational family networks over the changing practices of border control. Officers and constables in the Indian Border Security Force, tasked with preventing all cross-border movements, recognised with sympathy the existence and emotional power of cross-border family ties. This article attempts to answer questions like what normative and emotive ideas about kin obligations and morality prevail upon individuals and families as they decide whether or not to continue investment in relations across borders. How do these sit within the larger political economy of the border itself?