Air Marshal Sandeep Singh, PVSM, AVSM, VM, (born 15 January 1963) is a retired officer of the Indian Air Force currently serving as the Military Advisor in the National Security Council Secretariat. He served as the Vice Chief of the Air Staff, succeeding Vivek Ram Chaudhari. Previously, he served as the Air Officer Commanding-in-Chief (AOC-in-C), South Western Air Command. Wikipedia