An Indian businessman just became the first Asian member of the world's 10 richest people. Meet the Ambanis, who live in a $1 billion skyscraper and mingle with royals and Bollywood stars.

· An Indian businessman just became the first Asian member of the world's top 10 richest people, per Fortune.
· Mukesh Ambani is worth an estimated $64.5 billion, making him the ninth-richest person in the world, according to Bloomberg's Billionaires Index.
· He's the chairman and majority owner of Reliance Industries,...