PM Modi condoles death of Padma Vibhushan awardee and eminent aerospace scientist Roddam Narasimha Updated : December 15, 2020 11:04 AM IST He taught Aerospace Engineering at the IISc from 1962 to 1999 Dr Kalam and Prof Narasimha had together authored a book –”Developments In Fluid Mechanics and Space Technology”. Published : December 15, 2020 07:54 AM IST