#5 Mukesh Ambani

Age: 50

Fortune: inherited and growing

Source: petrochemicals

Net Worth: $43.0 bil

Country Of Citizenship: India

Residence: Mumbai , India, Asia & Australia

Industry: Manufacturing

Marital Status: married, 3 children

Education: University of Bombay, Bachelor of Chemical Engineering
Stanford University, Master of Business Administration

Asia's richest resident heads petrochemicals giant Reliance Industries, India's most valuable company by market cap. His fortune is up $22.9 billion since last year, making him the world's second biggest gainer in terms of dollars. The biggest gainer was his estranged brother Anil, who ranks 6th in the world just behind his older brother. The sons inherited their fortune from their late father, renowned industrialist Dhirubhai Ambani. But they couldn't get along and in 2005 their mother brokered a peace settlement breaking up the family's assets. Mukesh is using some of his money to build a 27-story home.