The constitutional design of Bangladesh is characterized by an ambivalent choice: it aspires to establish a republican yet a Bengalee state by putting itself in the conflicting terrain within the demos–ethnos binary. This article aims to examine the implication of this problematic choice along all three axes of the constitution’s elemental parts: its identity, rights and structure. While the identity element of the Bangladesh Constitution embodies the ethno-nationalist vision of the Bengalee state that transforms demos into ethnos, its rights and structural aspects reflect its republican promise to transform ethnos into demos. Contemporary scholarship seeks to confront the exclusionary dimension of the ethno-nationalistic choice in Bangladesh but ends up accepting ethnos as a politically superior value. Such an approach brings us to the politics of difference and, with that, undermines the integrationist potential of the republican constitution. In response, this article defends the republican promise of the Bangladesh Constitution while arguing that what we need in Bangladesh is the ‘de-ethnicization’ of the republic, one that can be achieved by transforming ethnos into demos and not the other way around.