Days before his birthday, Mukesh Ambani regained the spot as Asia's richest person. On his birthday, here are five interesting facts about Reliance Industries Limited chairman.

- Mukesh Ambani was born on April 19, 1957 in in Aden, Yemen into a Gujarati Hindu family to Dhirubhai Ambani and Kokilaben Ambani. He has a younger brother Anil Ambani and two sisters, Nina Bhadrashyam Kothari and Dipti Dattaraj Salgaonkar. Ambani lived only briefly in Yemen because his father decided to move back to India in 1958 to start a trading business that focused on spices and textiles.