Harsh Mariwala controls Marico, the $2.2 billion (market cap) consumer goods firm best known for its Parachute hair oil,
Saffola cooking oil and more recently, Saffola breakfast cereals such as oats and muesli.
Earlier this year, he restructured the firm, combining its domestic and international businesses under one CEO.
He also spun off Kaya, a lossmaking chain of skin care clinics, into a separate listed outfit called Marico Kaya Enterprises.
Mariwala shares the fortune with his extended family.