An exhibition that opened yesterday at the National Gallery of Modern Art (NGMA), New Delhi, showcases 90 monochrome works by one of India’s finest photographers. Prabuddha Dasgupta — A Journey was also the venue for the launch of a book of the late photographer’s images, writings and interviews. Call it what you want — a stage or sanctum, a retrospective or resurrection — the exhibition and book mean different things to different people.