He rubbed shoulders with giants of Theoretical Physics, and was on the verge of taking India into the nuclear club, in 1966.

Its speculated (including an ex-CIA anecdote) that he was assasinated. USA couldn't handle the fact of India growing into a Nuclear and Space power. Another Indian scientist Sarabhai also died under suspicious circumstances. But Bhabha's seemed especially a strategic concern for US policy in those days.

USA and India were 'almost enemies' in those decades, a period when India refused to be bullied by either side.