Lakshmi Nivas Mittal is an Indian-British businessman who founded and runs ArcelorMittal, the world's largest steelmaking company. He was born in 1950 in Rajasthan, India and moved with his family to Kolkata as a child. After graduating from college, he joined his family's steel business and began expanding internationally in the 1970s. By the 2000s, Mittal had acquired steel mills around the world and merged them to form ArcelorMittal. He continues to lead the company as its CEO and chairman. Mittal is considered one of the richest and most successful businessmen in the world.