Air Chief Marshal S.K. Mehra will be discussing the formulation of the doctrine by the National Security Advisory Board. Since it was made public, the Doctrine has received both domestic and international reactions. Air Chief Marshal Mehra will discuss these reactions as expressed in the media. While in the Service, Air Chief Marshal S.K. Mehra progressed from junior to middle levels in operational fighter units specializing in both air defence and strike roles, and commanded key operational squadrons and major Air Force fighter bases. The senior staff appointments held by him include Director of Air Staff Inspection, Director of Personnel (Officers), Assistant Chief of Air Staff (Operations), and Deputy Chief of the Air Staff. He held the appointment of Air Officer commanding-in-Chief, South Western Air Command with the responsibility of all air operations in the sector, prior to being appointed as the Chief of the Air Staff in 1988. He retired in 1991 on completion of the three-year tenure as the Air Chief. Presently, he is on the Governing Council of the Institute of Defence Studies and Analysis (IDSA), and a member of the Institute of Peace and Conflict Studies-both located in New Delhi. He has also been nominated by the Government of India to the National Security Advisory Board.