Indian Billionaire Gautam Adani Scales New Heights To Become The World’s Second-Richest Person Adani Group chairman Gautam Adani surpassed LVMH chairman and CEO Bernard Arnault Friday and is now the world's second-richest person with a net worth of $155.5 billion on Forbes’ Real-Time billionaire rankings, increasing $5.2 billion or 3.49% from yesterday.