If you can read Tamil, I strongly recommend my co-blogger Arunn's essay on Prof. Rao and his career.
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Here at IISc, we had a charming little event to felicitate Prof. Rao on the Bharat Ratna award. His arrival was greeted with a standing ovation from all the faculty gathered at the Faculty Hall. Prof. Rao gave a short, sweet and very gracious speech in which recounted some of the key events in his life at our Institute.