Dhirajlal Hirachand Ambani (1932-2002) was an Indian business magnate and entrepreneur who founded Reliance Industries. He had a humble beginning working as a clerk but became an entrepreneur and established businesses in textiles, petrochemicals, oil refining, and telecommunications. Under his leadership, Reliance Industries became the largest private sector company in India. He was a visionary who pioneered many business practices in India and contributed greatly to the development of Indian industry.