Dr S Christopher is an Indian scientist who currently serves as Chairman of the Defence Research and Development Organisation (DRDO).Formerly he was director of the Centre for Airborne Systems. He is also the author of various research publications.Christopher is credited to have directed the manufacturing of India's first indigenous AEW&C system. He received various distinguished awards including the Best Defence Research and Development Organisation - Outstanding Scientist for 2012. He was appointed as Chairman of the DRDO on 29 May 2015 for a two-year term. He further got extension of 1year. Wikipedia
Who is popular today?