Tata Steel Limited is an Indian multinational steel-making company, headquartered in Mumbai, Maharashtra, with its primary operations based in Jamshedpur, Jharkhand. It is a subsidiary of the Tata Group. Formerly known as Tata Iron and Steel Company Limited, Tata Steel is one of the largest steel producers globally, with an annual crude steel capacity of 35 million tons and one of the world's most geographically diversified steel producers, with operations and commercial presence spanning multiple regions. The group recorded a consolidated turnover of US$31 billion in the financial year ending 31 March 2023. It is the largest steel company in India, with an annual capacity of 21.6 million tons after the Steel Authority of India Ltd. Tata Steel, SAIL, and Jindal Steel and Power are the only three Indian steel companies that have captive iron-ore mines. Tata Steel operates in 26 countries with key operations in India, the Netherlands, and the United Kingdom, and employs around 78,300 workers globally. Its largest plant is located in Jamshedpur, Jharkhand. In 2007, Tata Steel acquired the UK-based steelmaker Corus. Wikipedia