The essence of all religions is one,” said M.K. Gandhi. Yet the path to this oneness can be varied; Leonid Plotkin traces the routes charted by believers in their search for it in Nostalgia For Eternity: Journeys in Religion, History, and Myth on the Indian Subcontinent (Niyogi, Rs 3,000). What makes the images striking is Plotkin’s eye for colour. Primary shades like red, saffron, blue and green frame and illuminate devotees in states of ecstasy and abandon. It is the brilliant hues that stop Plotkin’s photographs from being clichéd.