Dipankar Gupta is a professor of sociology at the School of Social Sciences at Jawaharlal Nehru University, and has also taught abroad. He writes regularly on sociopolitical issues in national newspapers. His other books are: Nativism in a Metropolis - The Shiv Sena in Bombay (1982); Context of Ethnicity - Sikh Identity in a Comparative Perspective (1996); Political Sociology in India (1996); Rivalry and Brotherhood - Politics in the Life of Farmers in Northern India (1997); Interrogating Caste - Understanding Hierarchy and Difference in India (2000); and Culture, Space and the Nation-State - From Sentiment to Structure.