Examine the role of coal as an important energy resource and describe its distribution in India.
Generated by claude-sonnet-4-6 · 2026-06-15 07:01 · grounding rag
Model Answer
Role of Coal as an Energy Resource:
Coal is the most abundantly available fossil fuel in India. It is used for power generation, supplying energy to industries, and for domestic needs. India is highly dependent on coal for meeting its commercial energy requirements. Coal is a bulky material that loses weight on use (reduced to ash), so heavy industries and thermal power stations are located near coalfields.
Types of Coal: Peat → Lignite (low grade) → Bituminous (most popular commercially) → Anthracite (highest quality). Metallurgical coal (high-grade bituminous) is used in blast furnaces for smelting iron.
Distribution in India:
- Gondwana coalfields (~200 million years old): Found in Damodar Valley (West Bengal-Jharkhand) — Jharia, Raniganj, Bokaro. Also in Godavari, Mahanadi, Son and Wardha valleys.
- Tertiary coalfields (~55 million years old): Found in north-eastern states — Meghalaya, Assam, Arunachal Pradesh and Nagaland.
- Lignite reserves: Neyveli, Tamil Nadu (used for electricity generation).
Source: Conventional Sources of Energy, Chapter 5
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Explanation
- The question has two parts: role and distribution — address both clearly.
- Examiners expect mention of uses, types of coal (at least 3–4), and both Gondwana and Tertiary coalfields with named states/fields.
- Neyveli lignite is a frequently asked specific fact — include it.
- The note about industries locating near coalfields is an important applied point from the textbook — don't skip it.