What Lies Beneath: India's Minerals and Energy Map

From Odisha's iron-ore valleys to Rajasthan's solar parks to the lithium finds of Reasi, India's mineral and energy geography is the hidden wiring of its economy. UPSC keeps returning to it - distribution maps, critical minerals, and the renewables race.

How minerals are classified

Minerals divide three ways. Metallic minerals have lustre and conduct electricity - ferrous ones contain iron (iron ore, manganese, chromite), non-ferrous ones do not (copper, bauxite, gold, zinc, lead). Non-metallic minerals are the industrial workhorses - limestone, mica, gypsum, salt. Energy minerals are the fuels - coal, petroleum, natural gas, uranium.

The scale is large and lopsided: in 2023-24 the provisional value of metallic mineral production was about ₹1,27,599 crore, over 90 percent of total mineral production value. Ferrous minerals feed steel; non-ferrous metals resist corrosion and are supremely malleable - the reason copper, not iron, wires your house.

India's metallic minerals: the India map

Iron ore

• India holds the largest iron ore reserves in Asia and ranks among the top exporters; about 95 percent of reserves lie in Odisha, Jharkhand, Chhattisgarh, Karnataka and Goa.
• Key fields: Barabil-Koira valley, Sundargarh and Keonjhar in Odisha; Bailadila and Dalli-Rajhara in Chhattisgarh; Noamundi in Singhbhum, Jharkhand; Kemmangundi in the Bababudan Hills and Sandur-Hospet in Karnataka.

Manganese

• India has the world's second-largest manganese ore reserves and is the fifth-largest producer; Odisha leads production (Bonai, Kendujhar, Sundergarh, Kalahandi).
• Also mined in Karnataka (Dharwar, Bellary, Shimoga), with smaller output from Maharashtra, Madhya Pradesh, Andhra Pradesh, Goa and Jharkhand.

Bauxite

• India ranks fourth globally in bauxite reserves, mostly in tertiary deposits; Odisha is the largest producer, especially Kalahandi and Sambalpur.
• Other belts: Bhavnagar and Jamnagar in Gujarat, the Amarkantak plateau in Chhattisgarh, and Katni-Jabalpur and Balaghat in Madhya Pradesh.

Copper

• Major deposits in Jharkhand, Madhya Pradesh and Rajasthan; the metal of wires, motors, transformers and generators.
• Khetri in Rajasthan (run by Hindustan Copper Limited), Malajkhand in Madhya Pradesh, the Singhbhum mine in Jharkhand and Kedgaon in Maharashtra.

Gold

• India is the world's second-largest gold consumer but imports most of its demand; Karnataka accounts for over 92 percent of domestic production.
• Hutti in Raichur is the working giant; the famous Kolar Gold Fields closed in 2001; Ramagiri and Jonnagiri fields lie in Andhra Pradesh.

Zinc and lead

• Rajasthan holds over 95 percent of India's zinc resources - Rampura Agucha, Zawar, Sindesar Khurd and Rajpura-Dariba - with Hindustan Zinc Limited dominating output.
• Lead travels with zinc as galena; silver comes along as a by-product of lead-zinc, copper and gold refining, again led by Rajasthan.

Compressed to one sheet, the metallic map prelims keeps redrawing:

The non-metallic workhorses

Mica made India historically the world's leading supplier - the Nellore-Gudur belt of Andhra Pradesh and the Koderma-Gaya-Hazaribagh belt of Jharkhand and Bihar still matter for electronics and cosmetics. Limestone, the raw material of cement and iron-and-steel, comes chiefly from Madhya Pradesh, Rajasthan, Andhra Pradesh, Gujarat and Chhattisgarh. India even holds the world's largest kyanite deposits, centred on Singhbhum in Jharkhand.

Gypsum is a near-monopoly: Rajasthan produces about 99 percent of India's mineral gypsum (Jodhpur, Nagaur, Bikaner, Jaisalmer, Barmer) for cement, fertiliser and plaster of Paris. Common salt is a Gujarat story - nearly half of India's output from seawater evaporation - with Sambhar Lake in Rajasthan and rock salt in Himachal Pradesh completing the map.

Where the world digs

The global map explains the trade map. Copper's addresses are the Andes - Escondida and Collahuasi in Chile, Cerro Verde in Peru - plus Arizona in the USA and Olympic Dam in Australia. Iron ore means Pilbara in Western Australia, Carajas in Brazil's Para state, and the Mesabi Range around Lake Superior. Bauxite's biggest producer is Australia, with Guinea's Boke region rising fast. Manganese concentrates in South Africa's Kalahari basin, Gabon and Australia's Groote Eylandt. Gold's deep addresses are South Africa's Witwatersrand basin, Nevada's Carlin Trend and Kalgoorlie in Australia.

Three world-scale facts to memorise

• Chile dominates copper; Australia dominates iron ore and bauxite production; China dominates rare-earth processing at about 90 percent.
• Oil's uneven distribution drives geopolitics - the 2021 mains paper asked for its multi-dimensional implications, from price shocks to the Arctic scramble.
• India's answer to concentration risk is KABIL - acquiring critical-mineral assets abroad while building domestic exploration.

The mining sector: small share, big stakes

Mining contributes only 2.2-2.5 percent of India's GDP - the very paradox the 2021 mains paper probed: a Gondwana-endowed country whose mines add so little to national income. But the sector's weight exceeds its share: as per the 12th Five Year Plan, every 1 percent growth in mining creates 13 times more jobs than agriculture and 6 times more than manufacturing, while cutting import dependence and the current account deficit.

The drag factors are familiar to UPSC: thin exploration (only about 48 percent of mineral blocks auctioned between 2020 and 2023 found buyers, many lacking G1/G2-level data), royalty and taxation frictions, environmental damage from unscientific mining, and social flashpoints - the Niyamgiri Hills protests against Vedanta's bauxite mining and the Sterlite agitation in Tamil Nadu are the textbook cases.

The legal frame is the MMDR Act of 1957, the Mines and Minerals (Development and Regulation) Act. It classifies minerals into major minerals (regulated by the Centre, including coal, iron ore and atomic minerals) and minor minerals (building stone, gravel, ordinary clay and sand, regulated by the states), and successive amendments (2015, 2021, 2023) have moved major-mineral allocation to transparent auctions while opening the sector to private and foreign participation. The 2021 mains question on mining's small GDP share is really a question about this Act's licensing history.

Three reforms complete the legal frame the exam now expects by name. The National Mineral Policy of 2019 promised auctioned blocks with pre-embedded clearances, dedicated mineral corridors and industry status for mining. The MMDR Amendment of 2021 removed end-use restrictions and let captive mines sell up to half their yearly output in the open market after meeting their own needs. The MMDR Amendment of 2023 then enabled exploration and mining of critical minerals, created an exploration licence for deep-seated deposits, and moved critical and strategic minerals to central-government auctions, while the 2024-25 Budget scrapped customs duty on most critical minerals. Read together, the three moves shift India from allocating mines by discretion to auctioning them, and from digging what is easy to hunting what is strategic.

Beneath every debate sits finitude. Minerals are non-renewable: they concentrate over geological time and are consumed within a human generation, so conservation means using less, wasting less and using twice. The standing example UPSC cites is Japan, nearly as mineral-poor as India is mineral-rich, which mines its discarded electronics, urban mining, to recover rare earths and runs one of the world's most efficient recovery systems. India's tightening e-waste rules are the same idea at an earlier stage: the richest untapped mine of several critical minerals is the waste stream of the last decade.

Critical minerals: the new oil

Critical minerals are those essential to economic development and national security whose supply chains are dangerously concentrated. India has identified 30 of them - lithium, cobalt, nickel, rare earth elements, titanium, molybdenum, vanadium and others - chosen on resource availability, import dependence and importance to future technologies.

Their uses read like a net-zero shopping list: silicon, tellurium, indium and gallium for solar cells; neodymium and dysprosium for wind-turbine magnets; lithium, nickel and cobalt for EV batteries and grid storage. The vulnerability is stark - India imports 100 percent of its germanium, and China processes about 90 percent of the world's rare earths.

The policy answer is the National Critical Mineral Mission, announced in Budget 2024-25: financial incentives for exploration, fast-track approvals, PSU and private acquisition of assets abroad, a domestic stockpile, and mineral processing parks. The Geological Survey of India has established inferred lithium resources of 5.9 million tonnes in the Salal-Haimana area of Reasi district, Jammu & Kashmir, with more potential in Mandya, Karnataka - but India still lacks the refining capacity to process what it finds, a gap China exploits with roughly two-thirds of global lithium processing.

The Reasi find also carries a warning label. Lithium extraction is thirsty work, on the order of two million litres of water for every tonne of metal won from brines, and mining in a fragile young mountain belt risks slope failure, biodiversity loss and polluted headwaters on rivers that begin in the same hills. That is why the Salal-Haimana block matters strategically but will be watched environmentally: India's first hard-rock lithium test sits inside the same Himalayan fragility that geo-09's landslide section describes, and the Mandya potential identified by the Atomic Minerals Directorate in Karnataka offers a geologically calmer second address.

Coal, oil and gas: the conventional base

India is the world's third-largest energy consumer, and coal remains the base load: coal-fired plants account for about 42.5 percent of installed capacity, with the ancient Gondwana coalfields of Jharkhand, Chhattisgarh, Odisha and West Bengal doing the heavy lifting. The Jharia field in Jharkhand is India's oldest and most significant, the prime source of coking coal - yet India still imports nearly 90 percent of its coking coal, which the Mission Coking Coal targets to cut by scaling domestic output to 140 million tonnes.

Oil is the import story: India brings in over 80 percent of its crude needs, which is why solar and self-reliance keep appearing in the same paragraph. Natural gas is the bridge fuel that never quite bridged - just 6.5 to 8 percent of the primary energy mix against a global average of 23.5 percent, with a 2030 target of 15 percent riding on the 25,429-km National Gas Grid, and roughly half of demand met by imported LNG.

Unconventional hydrocarbons sit in the wings: coal-bed methane and shale-gas potential in the eastern coalfields such as South Karanpura's Sirka block, governed since 2016 by the Hydrocarbon Exploration and Licensing Policy, which unified licensing for conventional and unconventional resources.

Coal types are ranked by carbon content, and prelims tests the ranking. Anthracite is the highest grade (about 86 to 97 percent carbon), hard, shiny and nearly smokeless, found in small quantities in Jammu and Kashmir. Bituminous (about 45 to 86 percent carbon) is the workhorse: some 80 percent of India's coal is bituminous of non-coking grade, the fuel of power plants and the metallurgical grades of steel. Lignite is low-grade brown coal (about 25 to 35 percent carbon), high in moisture, mined notably at Neyveli in Tamil Nadu. Peat is the first stage of coal formation, waterlogged and fibrous, barely a fuel at all.

Oil and gas need their addresses. In India: Digboi in Assam (where oil was first struck in 1901 and Asia's first refinery rose), the Mumbai High offshore field in the Arabian Sea (the giant discovered in 1974 that still anchors domestic output), and the Krishna-Godavari basin on the east coast with its deep-water gas. Globally, offshore oil clusters where the 2025 mains asked about it: the Persian Gulf, the North Sea, the Gulf of Mexico, West Africa's Atlantic margin and Brazil's pre-salt fields, all shallow continental-shelf basins where ancient marine organic matter matured into petroleum.

Two gas stories complete the conventional-energy picture. Shale gas is natural gas trapped in fine-grained shale rock and freed by hydraulic fracturing plus horizontal drilling; India’s assessed shale prospects lie in basins like Cambay, Krishna-Godavari and Cauvery, though water and environmental costs have kept commercial production elusive. The gas-based economy is the policy goal of raising natural gas to 15 percent of India’s primary energy mix: gas burns cleaner than coal, so city gas networks, fertiliser plants and the Urja Ganga pipeline grid are the instruments. Prelims treats both as definition-plus-location questions.

The renewable surge

Solar is the headline act. By March 2026 India had crossed 150 GW of installed solar capacity - utility-scale, rooftop and the PM-KUSUM farm pumps together - after adding a record 44.61 GW in a single financial year. The Bhadla park in Rajasthan, at 2.25 GW, is among the world's largest, and the National Institute of Solar Energy puts the country's potential at 748 GW from just 3 percent of wasteland. About 300 sunny days a year and schemes from PM Surya Ghar rooftop subsidies to the International Solar Alliance did the pushing.

Wind crossed 56 GW, making India the fourth-largest wind producer, led by Gujarat, Tamil Nadu, Karnataka, Maharashtra, Rajasthan and Andhra Pradesh - with a 30 GW offshore target by 2030 under the 2015 offshore policy. The friction points are classic geography: land acquisition, transmission bottlenecks, and in Rajasthan, the flight paths of migratory birds.

Nuclear is the quiet baseload: 8.78 GW installed, about 3 percent of electricity, with the 1969 Tarapur station as the pioneer and a 22.38 GW target by 2031-32. Uranium comes from the Dharwar rocks of the Singhbhum copper belt in Jharkhand and the Jaduguda mine, while thorium waits in the monazite beach sands of Kerala and Tamil Nadu - the fuel of India's long-delayed third nuclear stage. The SHANTI Act of 2025 opened the sector to private players, and the Green Hydrogen Mission (2023, ₹19,744 crore) targets 5 million tonnes of green hydrogen a year by 2030, with dedicated hubs at Deendayal, V.O. Chidambaranar and Paradip ports.

Key Terms

• MMDR Act of 1957: The Mines and Minerals (Development and Regulation) Act, 1957 is the principal law governing mining in India, regulating prospecting, leases and royalties for major minerals. The 2015 amendment replaced discretionary allocation with auction-based leases and created the District Mineral Foundation, while the 2021 amendment further liberalised captive mining. It matters for UPSC because mining federalism and auction disputes are recurring GS-3 issues. the 2015 amendment introducing auction-based allocation of mining leases
• Krishna-Godavari basin: The Krishna-Godavari basin is India's largest sedimentary basin, stretching onshore and offshore along the Andhra Pradesh coast between the deltas of the Krishna and Godavari rivers. It holds some of the country's richest oil and natural gas reserves, developed notably through the KG-D6 block. For UPSC, it is central to GS-3 questions on energy security, hydrocarbon exploration licensing, and India's eastern offshore geology. KG-D6 block, operated by Reliance Industries
• critical minerals: Critical minerals are minerals essential to a country's economic development and national security whose supply is concentrated in a few places, so disruption is a strategic risk. India has identified 30 of them, including lithium, cobalt, nickel, graphite and the rare earth elements, and created the National Critical Mineral Mission (2025) to explore, auction, acquire abroad and recycle them. The term is the bridge between this chapter's geology and India's energy-transition strategy.
• mineral belt: A mineral belt is a region whose geology concentrates a family of economically workable mineral deposits, so that mines, smelters and rail links cluster there. India's classic belts are the north-eastern peninsular belt (Chotanagpur-Odisha: coal, iron ore, copper), the south-western belt (Karnataka-Goa: iron ore, manganese, bauxite) and the north-western belt (Rajasthan-Gujarat: limestone, gypsum, lead-zinc). Belts exist because minerals follow rock systems, Archaean and Dharwar rocks above all.
• Mumbai High: Mumbai High is India's largest offshore oil and gas field, located about 160 km west of Mumbai in the Arabian Sea. Discovered by ONGC in 1974, it began commercial production in 1976 and has long been the backbone of India's domestic crude output. For UPSC, it is central to energy security, upstream petroleum, and economic geography, often asked in prelims map and resource questions. Discovered by ONGC in 1974; production began in 1976.
• Coal types: Coal types are the four ranks of coal classified by carbon content and heat value: anthracite (hardest, highest carbon), bituminous (most mined, used in power and steel), lignite (brown coal, lower energy) and peat (youngest, lowest grade). Higher rank reflects greater geological heat and pressure over time. India's Gondwana fields yield bituminous coal while Tertiary deposits in Tamil Nadu and the northeast yield lignite. The ranking matters for UPSC geography and energy questions, since grade decides use, price and emissions. the Jharia coalfields of Jharkhand, famous for coking-quality bituminous coal used in steelmaking
• beneficiation: Beneficiation is the treatment of mined ore, crushing, washing, magnetic separation, flotation, to raise the share of useful mineral and discard the gangue before smelting. It decides whether a low-grade deposit is a mine or a hill: much of India's iron ore and nearly all of its prospective lithium need beneficiation to be worth moving. UPSC pairs the term with the critical-minerals processing gap, India's weakest link after exploration.
• Anthracite: Anthracite is the highest-grade coal, containing 80 to 95 per cent carbon, hard and compact, burning slowly with a blue flame and little smoke. It has the highest calorific value among coals but is the rarest variety. For UPSC geography, its defining fact is that in India it occurs only in Jammu and Kashmir, making it a favourite one-mark question on coal distribution. The Kalakot coalfields in Rajouri district hold India's known anthracite reserves.
• Bituminous: Bituminous is a grade of coal between lignite and anthracite, commonly called soft coal, with a carbon content of about 45 to 86 percent. It burns with a smoky flame, is widely used in thermal power generation, and when heated in the absence of air yields metallurgical coke for the steel industry. Most of India's Gondwana coal is bituminous or sub-bituminous. For UPSC, coal grades are standard prelims geography and energy questions. the bituminous coal of the Gondwana coalfields of Jharkhand and West Bengal
• Lignite: Lignite is brown coal, a low-rank, low-carbon and high-moisture fossil fuel that is softer and less energy-dense than bituminous coal and is typically burnt at the pithead in thermal power stations. India's major deposits lie in Tamil Nadu, Gujarat, and Rajasthan. It matters for UPSC geography and energy questions on coal types, mining regions, and the fuel mix of Indian thermal power. the Neyveli lignite mines of NLC India in Tamil Nadu
• Digboi: Digboi is the town in Assam where oil was first struck in India in 1889, making it the birthplace of the Indian petroleum industry. Its refinery, established in 1901, ranks among the oldest continuously operating refineries in Asia. The town grew around the Assam Oil Company and now houses a centenary museum of oil. For UPSC it matters for energy resources, industrial history and the economic geography of the Northeast. The Digboi refinery, commissioned in 1901, is among the oldest operating refineries in the world.
• Peat: Peat is a soil-like material formed from partially decayed plant matter that accumulates in waterlogged, oxygen-poor conditions such as bogs and marshes. Rich in carbon, it burns as a low-grade fuel, and its undisturbed layers preserve a record of past climates. For UPSC it matters in geography and environment questions, especially where peatlands are discussed as carbon stores vulnerable to drainage and fire.

Practice questions