There should be a viable business in selling Captain CP Krishnan Nair’s diet. Or the philosophy by which he lives his life. Because even at 90, the chairman of Leela Hotels, not only has the energy of a man less than half his age, but also the cheerful enthusiasm and optimism that most people forget by the time they are nine. We meet at the Royal Club, New Delhi, the Leela’s new property. Nair extricates himself from a meeting of the top brass of the hotel including Dinesh Nair, his son, and Rajiv Kaul, vice chairman, the more public face of the group. We sit down to tea and with the murmur of hospitality industry strategy, including how to attract the 1.5 million Russian tourists, buzzing behind us, get talking.