The correct answer is (d), 1956.
The Steel Authority of India Limited (SAIL) is an Indian state-owned steel-making company. It is the largest steel producer in India and the fourth largest in Asia. SAIL was established in 1956 under the Ministry of Steel and Mines. The company has its headquarters in New Delhi.
SAIL has a number of steel plants located across India. The largest plant is the Bhilai Steel Plant in Chhattisgarh. Other major plants include the Rourkela Steel Plant in Odisha, the Durgapur Steel Plant in West Bengal, the Bokaro Steel Plant in Jharkhand, and the Salem Steel Plant in Tamil Nadu.
SAIL produces a variety of steel products, including hot rolled coils, cold rolled coils, plates, bars, and billets. The company also exports steel to a number of countries around the world.
In 2019-20, SAIL produced 13.7 million tonnes of steel. The company’s revenue for the year was â¹75,000 crore. SAIL employs over 70,000 people.
The options (a), (b), and (c) are incorrect because SAIL was not established in those years.