Gautam Adani has slipped to the third rank on the world's richest people list with a net worth of $135 billion, as per Bloomberg Billionaires Index. Meanwhile, Mukesh Ambani is no longer among the world's 10 richest people and currently ranks 11th with $82.4 billion fortune. The development comes after domestic markets plunged on Monday, with Sensex crashing 1,000 points.