Fields of interest: Indian History: socio-political and intellectual history of modern India and Pakistan.
Education: Ph.D. University of Pennsylvania, 1959
Tilak and Gokhale: Revolution and Reform in the Making of Modern India (1962).
Morley and India, 1906-1910 (1967).
A New History of India (Oxford (1977); 3rd edition (1989); 4th edition (1993).
Roots of Confrontation in South Asia (Oxford 1982).
Jinnah of Pakistan (Oxford 1984).
Zulfi Bhutto of Pakistan (Oxford, 1993).
Nehru: A Tryst with Destiny (Oxford, 1996).