Q. In India, the steel production industry requires the import of
Answer: coking coal
Notes: The correct answer is [C] coking coal. India is one of the world's largest producers of steel, but its domestic reserves of high-grade coking coal are limited and contain high ash content, making them unsuitable for the blast furnaces used in modern steel plants without blending.Why Coking Coal?

• The Process: In an integrated steel plant, iron ore is converted into pig iron using a blast furnace. Coking coal is first converted into coke, which serves three critical roles:
  1. Fuel: It provides the intense heat required for smelting.
  2. Reducing Agent: It reacts with the oxygen in the iron ore to leave behind pure iron.
  3. Support: It provides the physical structure (permeability) to allow hot gases to circulate within the furnace.
• The Import Dependency: While India has vast reserves of non-coking coal (thermal coal used in power plants), it lacks high-quality metallurgical (coking) coal. Consequently, India imports a significant portion of its requirement, primarily from Australia, as well as South Africa, Canada, and the USA.

Analysis of Other Options:

• Saltpetre (Potassium Nitrate) [A]: Historically used in the manufacture of gunpowder and fertilizers, it is not a primary raw material for modern industrial steel production.
• Rock Phosphate [B]: This is the primary raw material for the fertilizer industry (producing Phosphorus-based fertilizers like DAP). While phosphorus is sometimes an impurity in iron ore that must be removed, rock phosphate is not imported for steel production.

Basic Raw Materials for Steel:

Material	Source in India	Role
Iron Ore	Abundant (Odisha, Chhattisgarh, Karnataka)	The source of iron metal.
Coking Coal	Largely Imported	Fuel and reducing agent.
Limestone	Abundant (Rajasthan, MP)	Flux (removes impurities as slag).
Manganese	Sufficient (Maharashtra, MP)	Increases strength and hardness.

Recent Trends: To reduce the heavy financial burden of imports, the Government of India has launched the "Mission Purvodaya" to develop the eastern states as a steel hub and is exploring Green Hydrogen as a potential future alternative to coal (Green Steel) to reduce carbon emissions.