In a recent appraisal of the nature of the enterprise of intellectual history, it was remarked, not for the first time, that the “the only history of ideas to be written are histories of their uses in argument”. Though perhaps not in such a self-conscious manner, the essays in this issue consider the transformative capacity of ideas. Modern intellectual history in the European and American context grew out of a critique of the dominance of social history; by contrast, it has received little or no attention in the field of colonial and modern South Asia. Despite the vibrancy of the field in general, the two major works in Indian intellectual history were written almost half a century ago. Eric Stokes's English Utilitarians and India and Ranajit Guha's A Rule of Property for Bengal were both concerned with the making of the regime of colonial political economy. These two important books took the major site of the generation of ideas to be the colonial state and the major actors to be its official intellectuals. Interestingly, both these historians later moved away from intellectual history to social history and the experience of the peasantry. It is an ironic tribute to their books that the subsequent focus of much South Asian historical scholarship has been on the nature of the colonial state and its relation to politics, economy and society. However, the emphasis on the power and the work of ideas, in Stokes's and Guha's initial formulations, slowly but surely gave way to “ethnographies of the state”.