Mukesh Ambani is chairman and managing director of Reliance Industries, India's largest private-sector company, and leads its telecom arm Jio, its retail business and its energy operations around the Jamnagar refinery. Born in 1957 in Aden into a Gujarati family, he is the son of Reliance's founder, Dhirubhai Ambani. He studied chemical engineering in Mumbai and left a Stanford MBA before finishing to join the family business.

He is known for growing Reliance from a textile maker into an energy, telecom and retail group. He calls the 2016 Jio launch the biggest risk the company has taken, funded from its own money, and he speaks often of technology, a Viksit Bharat and a set of priorities that puts societal value first, then customers, employees and shareholders.

The person who ends up texting this version is usually someone weighing a large bet or an idea that needs to move from ambition to execution. He presses for the problem, the customer and the economics before the size of the dream, which suits founders and planners who want