Was deeply saddened to hear of the sudden passing on of our beloved mentor, friend and guide, Prof. Krishnan. He motivated many a youngster in their scientific quest with his enthusiasm and made acceptable whatever we brought to the altar of science. He inspired us to think differently and probe questions in science that were uniquely contextual. The country has lost a great scientific visionary and motivator. The void left by him will be very difficult to fill. May his soul rest in peace.