Why is this industry concentrated in the Chhotanagpur region? Which is the oldest and privately owned plant?

The iron and steel industry is concentrated in the Chhotanagpur region because of the following reasons:

1. Chhotanagpur region is rich in iron ore, coking coal, and limestone, the primary raw materials needed for the production of iron and steel.
2. The region has a well-developed transportation infrastructure, including rail and road networks, which makes it easier to transport the raw materials and finished products.
3. Cheap labour is available in the region.

Tata Iron and Steel Company (TISCO) is the oldest and privately owned plant in India.