Offers a new, interreligious approach to questions of mission and conversion, grounded in a close study of the Chinmaya Mission, Ramakrishna Mission and other movements associated with the Hindu tradition of Advaita Vedanta. For some four hundred years, Hindus and Christians have been engaged in a public controversy about conversion and missionary proselytization, especially in India and the Hindu diaspora. Hindu Mission, Christian Mission reframes this controversy by shifting attention from "conversion" to a wider, interreligious study of "mission" as a category of thought and practice. Comparative theologian Reid B. Locklin traces the emergence of the nondualist Hindu teaching of Advaita Vedanta as a missionary tradition, from the eighth century to the present day, and draws this tradition into dialogue with contemporary proposals in Christian missiology. As a descriptive study of the Chinmaya Mission, the Ramakrishna Mission, and other leading Advaita mission movements, Hindu Mission, Christian Mission contributes to a growing body of scholarship on transnational Hinduism. As a speculative work of Christian comparative theology, it develops key themes from this engagement for a new, interreligious theology of mission and conversion for the twenty-first century and beyond.