as a Rockefeller fellow in Strategic Studies at the London School of Economics in 1966. On returning to India, he was appointed Director of the newly created Institute for Defence Studies and Analyses (IDSA) in New Delhi, a position he held until 1975. He then went on to hold a number of senior positions in the Government before returning as Director of IDSA in 1980. In 1987, he returned to England as a Visiting Professor and Nehru Fellow at St John's College, Cambridge. Between 1974 and 1986, Subrahmanyam served on a number of UN and other multilateral study groups, on issues such as Indian Ocean affairs, disarmament and nuclear deterrence; he also participated at various Pugwash conferences as a senior member. Subrahmanyam is the author or co-author of fourteen books. These include The Liberation War (1972) with Mohammed Ayoob about the Bangladesh Liberation War, nuclear Myths and Realities (1980), India and the nuclear Challenge (1986), The Second Cold War (1983) and Superpower Rivalry in the Indian Ocean (1989) with Selig S Harrison. Journalism Subrahmanyam was also well known as a frequent commentator and columnist in several Indian and international newspapers. After retiring from government service in the late 80's, he served as consulting editor and policy expert with various Indian publications. These included The Tribune, The Economic Times and The Times of India. Subrahmanyam was on the editorial board of The Times of India when India conducted the 'Shakti' nuclear tests in 1998 and the largely centrist paper famously withheld his comments, temporarily, while it condemned the weapons tests. Some of his writings in the press have been compiled and published in two volumes. Role in Indian nuclear and security policy Nuclear doctrine Subrahmanyam was appointed the Convenor of India's first National Security Council Advisory Board (NSCAB), established by the Atal Bihari Vajpayee government in 1998. The board drafted India's Draft nuclear doctrine, which governs all policy aspects with regard to usage and deployment of India's nuclear arsenal. Its most significant aspect was the declared 'No first use' policy, and the consequent directive that India's nuclear weapons would largely be oriented around a second strike capability. Subrahmanyam had been an old proponent of India adopting a no first use posture, arguing for it right after the Shakti tests in 1998, and even earlier in 1974. The nuclear doctrine was adopted by the government of India soon after. Kargil Review Committee