Read More>> Over the past year, the fortunes of the two brothers at the helm of India’s wealthiest dynasty have grown apart -- to more than $40 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 RelianceNSE -4.86 % Industries Ltd. into the $100 billion club. His personal fortune has swelled to $43.1 billion, according to the Bloomberg Billionaires Index, $5.2 billion ahead of Ma and just ahead of Microsoft Corp.’s former chief, Steve Ballmer.