60 years ago, on January 24, 1966, Dr Homi J Bhabha, the father of India's nuclear programme, died in an air crash on Mont Blanc. The official inquiry said the plane went off course in bad weather, but coincidences, missing evidence, and later unproven claims have kept conspiracy theories alive. A fascinating excerpt from Bakhtiar Dadabhoy's book, Homi J Bhabha: A Life.