BharatNotes
Introduction
India is endowed with significant mineral and energy resources, though their distribution is highly uneven -- concentrated primarily in the peninsular plateau region (Chota Nagpur Plateau, Deccan Plateau, and their extensions). The country's economic development and energy security depend on the judicious exploitation of these resources.
This chapter covers the distribution, production, and strategic significance of India's major minerals (metallic and non-metallic), fossil fuels (coal, petroleum, natural gas), nuclear minerals (uranium, thorium), and renewable energy resources (solar, wind, hydro).
Mineral Classification
| Category | Sub-type | Examples |
|---|---|---|
| Metallic Minerals | Ferrous (iron-bearing) | Iron ore, manganese, chromite, nickel, cobalt, tungsten |
| Non-ferrous | Copper, bauxite (aluminium ore), lead, zinc, tin, gold | |
| Non-Metallic Minerals | Industrial | Mica, limestone, gypsum, dolomite, phosphorite |
| Precious/semi-precious | Diamond, emerald, garnet, corundum | |
| Energy Minerals | Fossil fuels | Coal, petroleum, natural gas |
| Nuclear | Uranium, thorium, beryllium, lithium, zircon |
Coal
Coal is India's most abundant fossil fuel and the backbone of the country's energy sector, accounting for over 50% of primary energy supply and fuelling about 75% of electricity generation. India is the world's second-largest coal producer after China.
Types of Coal (by Carbon Content)
| Type | Carbon Content | Calorific Value | Occurrence in India |
|---|---|---|---|
| Anthracite | 86-97% | Highest (~8,700 kcal/kg) | Extremely rare; small deposits in Jammu & Kashmir |
| Bituminous | 45-86% | High (~5,500-8,700 kcal/kg) | Jharkhand, West Bengal, Odisha, Chhattisgarh -- majority of Indian coal is bituminous |
| Sub-bituminous | 35-45% | Moderate | Found in some Tertiary coalfields |
| Lignite (Brown Coal) | 25-35% | Low (~2,500-4,500 kcal/kg) | Tamil Nadu (Neyveli), Rajasthan (Barmer), Gujarat (Kutch), Jammu & Kashmir |
| Peat | <25% | Lowest | Not commercially mined in India |
Distribution of Coal in India
India's coal deposits are divided into two geological ages:
Gondwana Coal (~98% of reserves, ~99% of production):
- Formed during the Permian Period (~250 million years ago) in the Gondwana sedimentary basins.
- Found in river valleys of the Damodar, Son, Mahanadi, Godavari, and Wardha.
Tertiary Coal (~2% of reserves):
- Younger, lower quality (mostly lignite and sub-bituminous).
- Found in Assam (Makum coalfield), Meghalaya, Arunachal Pradesh, Nagaland, Jammu & Kashmir, Tamil Nadu (Neyveli), Rajasthan.
State-wise Coal Reserves and Production
| State | Share of Reserves | Key Coalfields | Production (2025-26, MT) |
|---|---|---|---|
| Jharkhand | ~26.4% (largest reserves, ~28 billion tonnes) | Jharia (India's premier coking coal field), Bokaro, Giridih, Karanpura, Ramgarh | ~191 MT (3rd in production) |
| Odisha | ~25.1% | Talcher, Ib Valley | ~239 MT (1st in production) |
| Chhattisgarh | ~18.1% | Korba, Hasdo-Arand, Mand-Raigarh | ~207 MT (2nd in production) |
| West Bengal | ~11% | Raniganj (India's oldest coalfield, mining since 1774) | Major producer |
| Madhya Pradesh | ~5% | Singrauli, Pench-Kanhan, Sohagpur | Significant producer |
| Telangana | ~4% | Singareni (Godavari Valley) | Singareni Collieries Company Ltd (SCCL) |
| Maharashtra | ~2% | Wardha Valley, Chandrapur | Moderate producer |
India crossed 1 billion tonnes of coal production on 20 March 2026 for the second consecutive year, driven by rising demand from thermal power plants and industrial sectors.
Major Coal-Producing Companies
| Company | Type | Key Operations |
|---|---|---|
| Coal India Limited (CIL) | Public sector (world's largest coal producer by volume) | Operates through 8 subsidiaries across eastern and central India; produces ~80% of India's coal |
| Singareni Collieries Company Ltd (SCCL) | Joint venture (Telangana govt + GoI) | Godavari Valley coalfields; only coal company in southern India |
| NLC India Ltd (formerly Neyveli Lignite Corporation) | Public sector | Lignite mining and power generation at Neyveli, Tamil Nadu |
Iron Ore
India has the fourth-largest iron ore reserves in the world and is a major exporter. Iron ore is the fundamental raw material for the steel industry.
Types of Iron Ore
| Type | Iron Content | Quality | Indian Occurrence |
|---|---|---|---|
| Magnetite | Up to 72% | Highest grade; magnetic | Karnataka (Western Ghats), Goa |
| Hematite | 60-70% | Most commercially mined in India; reddish | Jharkhand (Singhbhum), Odisha, Chhattisgarh, Karnataka, Goa |
| Limonite | 40-60% | Lower grade; hydrated | Lateritic deposits in coastal areas |
| Siderite | 40-48% | Lowest grade | Not significantly mined in India |
Distribution of Iron Ore
| State/Region | Share of Reserves | Key Deposits | Notable Facts |
|---|---|---|---|
| Odisha | >30% (largest reserves) | Bonai-Keonjhar belt, Mayurbhanj, Joda-Barbil | Largest iron ore producing state |
| Jharkhand | ~25% | Singhbhum-Noamundi belt, Gua, Chaibasa | Noamundi is one of India's richest iron ore mines |
| Chhattisgarh | ~18% | Bailadila range (Dantewada district) | High-quality hematite (>65% iron content); exports to Japan |
| Karnataka | ~12% | Bellary-Hospet belt, Sandur, Kudremukh (magnetite) | Kudremukh was India's largest mechanised mine; Bellary is a major producing area |
| Goa | ~3% | Various deposits across the state | Mining was banned by the Supreme Court in 2012 due to environmental damage; partially resumed |
| Maharashtra | ~2% | Chandrapur, Ratnagiri | Moderate deposits |
Over 90% of India's iron ore reserves are concentrated in Odisha, Jharkhand, Chhattisgarh, and Karnataka.
Petroleum (Crude Oil)
India is the world's third-largest oil consumer but produces only about 15% of its crude oil needs domestically, making it heavily dependent on imports (~85% import dependence).
Major Oil-Producing Regions
| Region | Type | Key Fields | Production Status |
|---|---|---|---|
| Mumbai High (Bombay High) | Offshore (Arabian Sea) | Mumbai High, Bassein, Panna-Mukta, Neelam-Heera | India's largest and most productive oil field; discovered by ONGC in 1974; accounts for ~40% of India's domestic crude production. BP has contracted to increase output by 44% and gas by 89% under a decade-long agreement. |
| Gujarat | Onshore | Ankleshwar, Kalol, Cambay Basin, Ahmedabad | India's oldest onshore oil region after Assam; declining mature fields |
| Assam | Onshore | Digboi (India's oldest oil field, 1889), Naharkatiya, Moran, Rudrasagar, Lakwa | Historic significance; fields extending ~320 km along the Brahmaputra Valley in Upper Assam; production declining |
| Krishna-Godavari (KG) Basin | Offshore (Bay of Bengal) | KG-D6 (Reliance), KG-DWN-98/2 (ONGC) | Major natural gas producer; ONGC investing ~$5 billion in the KG-DWN-98/2 block |
| Rajasthan | Onshore | Barmer-Sanchor Basin (Mangala, Bhagyam, Aishwariya fields) | Discovered by Cairn India (now Vedanta) in 2004; significant contributor to domestic production |
| Cauvery Basin | Offshore (Bay of Bengal) | Off Tamil Nadu coast | Moderate production; exploration ongoing |
Key Organisations in the Oil Sector
| Organisation | Role |
|---|---|
| ONGC (Oil and Natural Gas Corporation) | India's largest oil and gas exploration and production company (public sector); operates Mumbai High |
| Oil India Limited (OIL) | Public sector; primarily operates in Assam and Rajasthan |
| Indian Oil Corporation (IOC) | India's largest oil refining and marketing company; operates 11 refineries |
| Reliance Industries | Private sector; operates the Jamnagar refinery (world's largest single-location refinery complex, ~1.4 million bpd) |
| HPCL, BPCL | Public sector marketing companies with refining operations |
| Directorate General of Hydrocarbons (DGH) | Regulatory body under MoPNG |
Natural Gas
Natural gas is an increasingly important part of India's energy mix, used for power generation, fertiliser production (urea), CNG vehicles, and city gas distribution.
Major Gas-Producing Regions
| Region | Key Facts |
|---|---|
| Mumbai Offshore | Largest gas-producing region; associated gas from oil fields |
| KG Basin | Reliance's KG-D6 block was India's largest gas source (peak ~80 MMSCMD); production declined but is reviving with new discoveries (R-Cluster, Satellite Cluster, MJ-1) |
| Gujarat (Cambay Basin) | Onshore gas associated with oil production |
| Assam | Associated gas from Assam oil fields |
| Rajasthan | Barmer Basin gas (associated with oil) |
| Tripura | Significant gas reserves in the NE; ONGC operates |
India aims to increase the share of natural gas in its energy mix from ~6% (current) to 15% by 2030 as part of its clean energy transition.
Nuclear Minerals
India's nuclear energy programme, based on the three-stage strategy envisioned by Dr. Homi Bhabha, relies on two key minerals: uranium and thorium.
Uranium
| Aspect | Detail |
|---|---|
| Total estimated reserves | ~30,480 tonnes of uranium |
| Primary source | Pitchblende and uraninite ores |
| Major deposits | Jharkhand: Jaduguda, Bhatin, Narwapahar, Bagjata, Turamdih, Banduhurang, Mohuldih (Singhbhum shear zone -- India's uranium belt); Andhra Pradesh: Tummalapalle (one of the world's largest uranium deposits, discovered 2007); Meghalaya: Domiasiat and Wahkyn; Rajasthan: Rohil deposit |
| Mining agency | Uranium Corporation of India Limited (UCIL) |
| Use | Fuel for Pressurised Heavy Water Reactors (PHWRs) in Stage-I of India's nuclear programme |
Thorium
| Aspect | Detail |
|---|---|
| Total estimated reserves | ~12.47 million tonnes (India has the world's largest thorium reserves) |
| Primary source | Monazite sands (a reddish-brown phosphate mineral containing rare earth elements and thorium) |
| Major deposits | Kerala: Coastal monazite sands (highest concentration); Tamil Nadu: Coastal beaches (Manavalakurichi, Kanyakumari); Odisha: Chhatrapur beach sands; Andhra Pradesh: Coastal deposits |
| Mining/processing | Indian Rare Earths Ltd (IREL) -- a government company under the Department of Atomic Energy |
| Use | Reserved for Stage-III of India's nuclear programme (thorium-based breeder reactors); India has the world's only operational thorium-fuelled experimental reactor (KAMINI at Kalpakkam) |
India's Three-Stage Nuclear Programme
| Stage | Fuel | Reactor Type | Status |
|---|---|---|---|
| Stage I | Natural uranium (U-235) | Pressurised Heavy Water Reactor (PHWR) | Operational; 22 reactors at 7 locations |
| Stage II | Plutonium-239 (bred from Stage I spent fuel) | Fast Breeder Reactor (FBR) | Prototype FBR (500 MW) at Kalpakkam nearing completion |
| Stage III | Thorium-232 / Uranium-233 | Advanced Heavy Water Reactor (AHWR) | Experimental stage; leverages India's vast thorium reserves |
Rare Earth Elements (REEs)
India holds about 6% of the world's rare earth reserves (primarily in monazite sands), making it the fifth-largest holder after China, Vietnam, Brazil, and Russia. However, India's production is minimal compared to China, which dominates ~60% of global rare earth mining and ~90% of processing.
| Aspect | Detail |
|---|---|
| Primary source in India | Monazite sands (same source as thorium) |
| Key deposits | Kerala, Tamil Nadu, Odisha, Andhra Pradesh (coastal beach sands) |
| Mining agency | IREL (Indian Rare Earths Ltd) |
| Uses | Electronics, magnets, EV batteries, defence (missile guidance), wind turbines, smartphones |
| Strategic concern | India's critical mineral policy (2023) identifies REEs as strategic; aims to reduce China dependence through domestic mining and international partnerships (e.g., Quad Critical Minerals Partnership) |
Renewable Energy Resources
India has set an ambitious target of 500 GW of non-fossil fuel-based installed capacity by 2030 (announced at COP26, Glasgow, 2021). As of February 2026, India's total installed renewable energy capacity stands at approximately 267 GW.
Renewable Energy Capacity (as of late 2025)
| Source | Installed Capacity (GW) | Key States | Notes |
|---|---|---|---|
| Solar | ~133 GW (November 2025) | Rajasthan, Gujarat, Karnataka, Tamil Nadu, Andhra Pradesh, Maharashtra | Solar capacity grew by ~41% in one year (94 GW in Nov 2024 to 133 GW in Nov 2025); PM-KUSUM scheme for farmer solar pumps; Bhadla Solar Park (Rajasthan) -- one of the world's largest |
| Wind | ~54 GW (November 2025) | Tamil Nadu, Gujarat, Karnataka, Rajasthan, Maharashtra, Andhra Pradesh | Wind capacity grew ~12.5% year-on-year; Tamil Nadu is the leading wind energy state; offshore wind potential ~70 GW (mostly Gujarat, Tamil Nadu coasts) |
| Small Hydro (<25 MW) | ~5 GW | Himachal Pradesh, Uttarakhand, Karnataka, Kerala, Arunachal Pradesh | Run-of-river projects; environmentally less disruptive than large dams |
| Large Hydro (>25 MW) | ~47 GW | Uttarakhand, Himachal Pradesh, Karnataka, J&K, Andhra Pradesh | Classified as renewable since 2019; NE India has enormous untapped potential |
| Biomass/Bagasse | ~11 GW | Maharashtra, Karnataka, Uttar Pradesh, Andhra Pradesh | Agri-waste and sugar mill cogeneration |
| Waste-to-Energy | ~0.6 GW | Various states | Emerging sector |
State-wise Renewable Energy Leadership
| State | Strength | Key Infrastructure |
|---|---|---|
| Rajasthan | Solar (highest solar irradiance in India) | Bhadla Solar Park (~2,245 MW); vast desert land available |
| Gujarat | Solar + Wind + Offshore wind | Modhera (India's first solar-powered village); Kutch RE zone |
| Tamil Nadu | Wind (largest installed wind capacity) | Muppandal wind farm; Kayathar wind farm |
| Karnataka | Solar + Wind + Hydro | Pavagada Solar Park (~2,050 MW); strong mix of all three |
| Maharashtra | Wind + Solar | Significant wind installations in western ghats; growing solar |
| Andhra Pradesh | Solar + Wind | Kurnool Ultra Mega Solar Park |
India's Energy Mix (Overview)
| Source | Share of Installed Electricity Capacity (approx. 2025-26) |
|---|---|
| Coal (thermal) | ~49% |
| Renewables (solar, wind, small hydro, biomass) | ~43% (including large hydro) |
| Gas | ~6% |
| Nuclear | ~2% |
| Diesel | <1% |
India added a record ~45 GW of new solar and wind capacity in calendar year 2025, with Gujarat, Rajasthan, and Maharashtra contributing over 50% of additions.
Other Important Minerals
| Mineral | Key Indian States | Uses | India's Global Rank |
|---|---|---|---|
| Manganese | Odisha, Maharashtra, Madhya Pradesh, Karnataka, Goa | Steel alloys (ferromanganese), dry-cell batteries | 5th largest producer |
| Bauxite | Odisha, Gujarat, Jharkhand, Maharashtra, Chhattisgarh | Aluminium production | 5th largest reserves |
| Chromite | Odisha (Sukinda Valley -- ~97% of India's chromite) | Stainless steel, refractory | Major producer |
| Copper | Rajasthan (Khetri), Jharkhand (Singhbhum), Madhya Pradesh | Electrical wiring, electronics | Deficit country; major importer |
| Mica | Jharkhand (Koderma -- "Mica Capital"), Andhra Pradesh, Rajasthan | Electrical insulation, cosmetics, electronics | Was world's largest producer; now declining |
| Limestone | Rajasthan, Madhya Pradesh, Andhra Pradesh, Karnataka, Gujarat | Cement, steel (flux), chemicals | Abundant across most states |
| Gold | Karnataka (Kolar Gold Fields, Hutti), Rajasthan, Jharkhand | Jewellery, investment, electronics | Limited domestic production; major importer |
India's Critical Mineral Strategy
In 2023, the Indian government identified 30 critical minerals essential for energy transition, defence, and high-technology manufacturing. The strategy aims to reduce dependence on a single-country supply chain (primarily China).
Key Components
| Component | Detail |
|---|---|
| Critical Minerals Mission | Announced in Union Budget 2025-26; aimed at securing domestic and overseas supply of lithium, cobalt, nickel, rare earths, graphite, and other critical minerals |
| KABIL (Khanij Bidesh India Ltd) | Joint venture of NALCO, HCL, and MECL; mandated to acquire critical mineral assets abroad; signed agreements with Argentina (lithium), Chile, Australia |
| Domestic exploration | Geological Survey of India (GSI) undertaking lithium exploration in J&K (Reasi), Rajasthan, and Karnataka |
| Lithium discovery | 5.9 million tonnes of inferred lithium resources discovered in Reasi district, J&K (2023) -- India's first major lithium find |
| International partnerships | Quad Critical Minerals Partnership; India-Australia Critical Minerals Investment Partnership; Mineral Security Partnership (MSP) with USA and allies |
Mineral-Rich Belt of India (Chota Nagpur Plateau)
The Chota Nagpur Plateau (Jharkhand, Odisha, Chhattisgarh, parts of West Bengal) is India's mineral heartland, often called the "Ruhr of India." This region contains:
- ~80% of India's coal reserves
- ~90% of India's iron ore
- ~95% of India's chromite (Sukinda Valley, Odisha)
- Major deposits of copper, bauxite, manganese, uranium, and mica
- The Singhbhum shear zone -- one of the world's oldest and most mineralised geological formations
Exam Strategy
For Prelims: Coal types and their carbon content, state-wise mineral distribution (Jharkhand = uranium at Jaduguda, Kerala = thorium in monazite, Odisha = chromite at Sukinda, Karnataka = gold at Kolar), Mumbai High as the largest offshore oil field, and India's renewable energy targets (500 GW by 2030) are frequently tested.
For Mains GS-I/GS-III: Questions ask about the spatial distribution of minerals and their link to industrialisation, energy security challenges, India's three-stage nuclear programme, and the renewable energy transition. Use maps and data tables in your answers.
Common Mains questions:
- Discuss the distribution of coal and iron ore in India. How does this distribution influence the location of major industrial centres?
- Examine India's energy security challenges. How can renewable energy and nuclear power contribute to reducing import dependence?
- What are rare earth elements? Discuss their strategic importance and India's potential in this sector.
- Critically evaluate India's three-stage nuclear power programme in the context of its thorium reserves.
- Discuss the state-wise distribution of renewable energy in India. What factors explain the concentration of solar energy in Rajasthan and wind energy in Tamil Nadu?
Last updated: 28 March 2026
