The Saint in the Banyan Tree is a nuanced and historically persuasive exploration of Christianity’s remarkable trajectory as a social and cultural force in southern India. Starting in the seventeenth century, when the religion was integrated into Tamil institutions of caste and popular religiosity, this study moves into the twentieth century, when Christianity became an unexpected source of radical transformation for the country’s ‘untouchables’ (dalits). Mosse shows how caste was central to...