Q. Where was India's first iron and steel plant established?
Answer: Jamshedpur
Notes: The first iron and steel plant in India was established at Jamshedpur by Tata Iron and Steel Company (TISCO) in 1907. Jamsetji Tata founded TISCO, which started pig iron production in 1911 and steel production in 1912. Jamshedpur was chosen due to its proximity to coal, iron ore, and manganese deposits and river water sources. By 1939, TISCO became the largest steel plant in the British Empire.