This article examines Mahindra & Mohammed (now Mahindra & Mahindra) and the Muhammadi Steamship Company through a microhistory of late colonial Bombay. The paper reveals companies committed to the economic unity of India shortly before the anticolonial struggle culminated in the violent and chaotic Partition of British India in August 1947. In Bombay, the center of Indian industry and not typically associated with the Partition’s dislocations, economic partition was unanticipated even by economic actors closely allied with the Muslim League. The two firms examined here highlight the understudied impact of decolonization and the Partition of the sub-continent on Indian capitalism, and suggests that postcolonial territorial realities implied an economic rearticulation that has often been overlooked.