sentences:  Prakash received his Bachelor of Arts degree in history from the University of Delhi in 1973, his Master's degree in history from Jawaharlal Nehru University in 1975, and his doctorate in history from the University of Pennsylvania in 1984.His field of research concerns urban modernity, genealogies of modernity, and problems of postcolonial thought and politics.He writes about modern South Asian history, comparative colonialism and postcolonial theory, urban history, global history, and the history of science.