Dr. HOMI J. BHABHA PADMA BHUSHAN Father of the Indian Nuclear Programme He earned world-wide fame for deriving correct expression for probability of scattering positrons by the electrons, a process now known as Bhabha Scattering.  ABOUT  VIDEOS ABOUT HIM  CROSSWORD PUZZLE DEDICATED TO HIM  Fill-the-Gaps QUIZ about him  Fill-the-Gaps QUIZ on History of this day  QUOTES OF THE DAY (SCIENCE)