You will not forget Raghu Rai's people. It does not matter if they are famous or unknown, the master photographer's images of them are so arresting that they stamp themselves immediately on the viewer's gaze. What he is able to do is catch the essential truth of his subjects in a way that renders them unforgettable. He says, 'When I take a person's portrait, I am trying to capture the aura of that person, the person's spirit in the picture. I am trying to get the truth of that person to emerge i