Ratan Tata is the chairman of Tata Sons and the Tata Group conglomerate. He joined the Tata Group in 1962 and worked his way up, becoming chairman in 1991. Under his leadership, the Tata Group expanded globally through strategic acquisitions such as Tetley Tea, Corus Steel, Jaguar Land Rover, and more. He is known for maintaining the Tata Group's ethical practices while transforming it into a global business through risk-taking and visionary decisions.