New Delhi, Dec. 14 -- The CIA lost a nuclear device on Nanda Devi, India's second highest peak (25,645 feet), in Uttarakhand in 1965, and the device has not been found till now, the New York Times reported on Saturday. The incident took place a few months after China detonated its first atomic bomb in 1964. So the CIA decided to install a secret sensor at the top of Nanda Devi to intercept radio signals from Chinese missile tests, NYT reported. The sensor would be powered by a portable nuclear device that contained nearly a third of the total amount of plutonium used in the Nagasaki bomb, and even larger amounts of Pu-238, a highly radioactive fuel. The plan was formulated by the CIA with inputs from general Curtis LeMay, the then head of t...