South Asia witnessed a number of transnational solidarities, some of which it was home to, others that drew the region into their ambit. Articulations of national identity, evident in Bangladesh and Sri Lanka, marked shifting definitions of the politico-cultural community in South Asia. Concurrently, there was a congealing of ideological connections that straddled continents such as the leftist solidarity Afro-Asianism epitomized. How did social imaginaries such as these, variously imbued with nationalist and internationalist ethos, influence India’s self-image? What role did sub-diplomatic solidarities forged by non-state actors such as activists and intellectuals play? In what ways had subnational activism contributed to some of these contested fraternities? Such questions were moot to India’s assessment of its own state capacity in the 1980s and beyond. The article takes as its focus two critical sites of postcolonial India’s international relations: transnational solidarity networks and domestic politics. In doing so, it attempts to offer a granular analysis of the ‘imagined collectivities’ India espoused and the multiplicity of agendas these stood for and which it helped shape.