Hong Kong, April 2 -- In the world of business, there is rarely anyone who does not know who Mukesh Ambani is. From massive global deals to becoming the richest man in India, the business tycoon has accomplished several milestones in his tenure so far. However, you will be surprised to know that the title of being India's richest billionaire was once held by his younger brother, Anil Ambani. The chairman and managing director of Reliance Group/Reliance ADA Group, Anil Ambani was once richer than Mukesh Ambani and had a massive net worth.

It all started with a demerger from Reliance Industries Limited, when Anil Ambani founded the Reliance Group in July 2006. He owned several stocks listed corporations including Reliance Capital, Reliance...