India’s Richest Brothers and How they Grew $41 Billion Apart

Elder sibling Mukesh Ambani, 61, toppled China’s Jack Ma as Asia’s richest man, after driving a telecommunications revolution in India that propelled his petrochemicals conglomerate Reliance Industries Ltd. into the $100 billion club. His personal fortune had swollen to more than $40 billion as of Friday, according to the Bloomberg Billionaires Index, billions ahead of Ma and at similar levels to Microsoft Corp.’s former chief, Steve Ballmer.

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