During the Raj, one group stands out as having prospered and thrived because of British rule: the Parsis. Driven out of Persia into India a thousand years ago, the Zoroastrian people adopted the manners, dress, and aspirations of their British colonizers, and their Anglophilic activities ranged from cricket to Oxford to tea. The British were fulsome in their praise of the Parsis and rewarded them with high-level financial, mercantile, and bureaucratic...