‘White Tiger’ dives into the psychology of servitude and the new understanding of success — What do travelers really know about the culture of India? Most often, not that much: yoga and vipassana, the cheerful atmosphere of Goan beaches, the architecture and postcard views of the Taj Mahal, mouth-watering palak paneer, saris and large-scale weddings. Fans of the novel Shantaram by Gregory David Roberts learn…