This is a proposal and summary of my ongoing research project on Bombay City between the two world wars. Bombay Between the Wars is a social history of urban politics, information and institutions in late colonial Bombay City, from the years before World War I until the outbreak of World War II. Through this study, I seek to understand the transformation of colonial rule and urban governance in the inter-war period, using the city as a window into networks of people, ideas and power in South Asia in the final decades of British rule. In this period, India’s commercial capital witnessed rapid social and technological change, with the rise of mass politics, state formation and the development of civic and local institutions which have remained under-investigated.