This article examines how Indian anticolonialists drew on Darwinism and evolutionary theory to resist British imperialism at the turn of the twentieth century. Drawing on archival material from The Bengalee (and beyond), I show how Indian nationalists marshaled evolutionist schemas to contest stage-based accounts of social advancement rationalizing despotic rule in India. I argue that Darwinian evolutionism enabled anticolonialists to respond to a particular decolonial dilemma—that of developmentalism, the unilinear notion of historical time justifying India’s political subjection. While Darwinism’s social application is commonly understood to sustain imperialism, I demonstrate that it served, in the colonial context, to deconstruct historicist tropes portraying India as politically immature. Drawing on evolutionism, nationalists contested the presumptions of imperialist discourse and reconceptualized progress in novel, anticolonial terms. Darwin’s travel to India thus exposes a distinctive decolonial quandary, the syncretic Indian anticolonial response to it, and the intractability of the contradictions facing decolonizing movements globally.