Explanation:

- Option 1: Kolkata

- While Kolkata is a major city in India, known for its colonial history and industry, it was not the site of the first iron and steel company.

- Option 2: Jamshedpur

- Jamshedpur, in the Indian state of Jharkhand, is the correct location.

- It is home to Tata Steel, established in 1907 by Jamsetji Tata, marking it as the first major iron and steel company in India.

- Correct Answer

- Option 3: Patna

- Patna is a significant historical city in Bihar but has no direct connection to the establishment of India's first iron and steel plant.

- Option 4: Ranchi

- Ranchi is the capital of Jharkhand and an industrial hub but not the site of the first iron and steel company.