Adani Group's Gautam Adani is this year's biggest wealth gainer, beating even the world's top two richest persons Jeff Bezos and Elon Musk, according to the Bloomberg Billionaires Index. The net worth of Adani has jumped $16.2 billion in 2021 to $50 billion. Meanwhile, Asia's richest person Mukesh Ambani's net worth has increased by $8.1 billion.