In short
This topic covers India's natural resource base — land, soil, water, forests, minerals and energy — and the agricultural, industrial, service and transport economy built on it. It links physical endowment to economic output: where a resource occurs explains where mills, smelters, power stations and ports are located. It is examined in BA/B.Sc. Geography papers on Geography of India, in UGC-NET Geography, and heavily in UPSC and State PSC prelims and mains (GS-I geography, GS-III economy). Employers test it in roles connected with mining and energy companies, agri-business, logistics, urban and regional planning, ESG and policy research, and in banking and PSU general-awareness rounds.
Explained
Resources: meaning and classification
- A resource is any element of the environment that can be used to satisfy human needs with available technology and at acceptable cost — so resources are *created*, not merely found (Zimmermann's "resources are not, they become").
- By origin: biotic (forests, fisheries, livestock, fossil fuels) and abiotic (minerals, metals, water, land).
- By exhaustibility: renewable/replenishable (solar, wind, water, forests) and non-renewable (coal, petroleum, metallic ores). Renewables can still be exhausted if used faster than they regenerate — groundwater is the Indian example.
- By ownership: individual (a farm plot), community (village pasture, pond), national (minerals, territorial waters up to 12 nautical miles, EEZ to 200 nm) and international (ocean floor beyond EEZ, managed by the International Seabed Authority).
- By status of development: potential (Rajasthan's solar), developed (surveyed and usable), stock (hydrogen in water — technology not yet viable) and reserve (the part of developed resources usable now, e.g. a proved coal reserve).
- India classifies mineral inventories under the UNFC (United Nations Framework Classification), issued by UNECE in 1997 and adopted in India in 2003, into *reserves* (economically mineable) and *remaining resources*; the National Mineral Inventory is maintained by the Indian Bureau of Mines (IBM).
Land, soils and forests
- Total geographical area 328.7 million hectares (Mha); land-use reporting covers about 306 Mha under nine-fold classification: forest, barren and unculturable, land put to non-agricultural uses, permanent pastures, miscellaneous tree crops, culturable waste, fallow other than current, current fallow, net sown area (~140 Mha).
- Gross cropped area is about 220 Mha, giving a cropping intensity near 155-160% — raised by irrigation and short-duration varieties.
- Soil types (ICAR / traditional): alluvial (largest share, Indo-Gangetic-Brahmaputra plains and coastal deltas — khadar vs bhangar; fertile, potash-rich, nitrogen-poor); black/regur (Deccan trap, Maharashtra-MP-Gujarat; clayey, moisture-retentive, ideal for cotton); red and yellow (Peninsular crystalline rocks; iron-rich, low in nitrogen and phosphorus); laterite (heavy-rain leached, Western Ghats, Kerala, Meghalaya; good for tea, coffee, cashew); arid/desert (Rajasthan, saline, low humus); forest/mountain; saline-alkaline (usar) and peaty/marshy.
- Soil degradation: sheet, rill and gully erosion (Chambal badlands), wind erosion, salinity from over-irrigation, waterlogging, nutrient mining. Remedies: contour ploughing, terracing, strip cropping, shelter belts, gully plugging, check dams, gypsum for alkali soils, watershed development.
- Forests: the India State of Forest Report 2023 (released 2024) puts forest cover at about 21.8% of geographical area and forest-plus-tree cover at about 25.2%; the National Forest Policy, 1988 target remains 33% (and 66%, i.e. two-thirds, in the hills). Types: tropical evergreen, deciduous (monsoon), thorn, montane, littoral and swamp (mangroves — Sundarbans).
- Governing law: Indian Forest Act 1927, Van (Sanrakshan Evam Samvardhan) Adhiniyam, 1980 (the renamed Forest Conservation Act, amended 2023), Wild Life (Protection) Act 1972, Forest Rights Act 2006, Biological Diversity Act 2002 (amended 2023), Compensatory Afforestation (CAMPA) Act 2016.
Water resources
- Average annual precipitation is of the order of 3,880 BCM; average annual water resource about 1,999 BCM and utilisable water about 1,122 BCM (roughly 690 BCM surface + 432 BCM replenishable groundwater) as per the Central Water Commission's 2019 reassessment — figures differ slightly across CWC/CGWB editions.
- Per capita availability has fallen below the 1,700 m³ "water-stressed" line and is projected to approach the 1,000 m³ "scarcity" line in coming decades.
- Irrigation sources: tube wells and other wells (largest, over half), canals, tanks. Over-extraction has made many blocks in Punjab, Haryana, Rajasthan and Tamil Nadu "over-exploited" in the CGWB assessment.
- Multipurpose projects: Bhakra-Nangal (Sutlej), Damodar Valley, Hirakud (Mahanadi), Nagarjuna Sagar (Krishna), Tehri (Bhagirathi), Sardar Sarovar (Narmada), Indira Gandhi Canal (Rajasthan).
- Policy and institutions: National Water Policy 2012, Central Ground Water Authority under the Environment (Protection) Act 1986, Jal Jeevan Mission (tap water to rural households), Atal Bhujal Yojana, Namami Gange, PMKSY ("per drop more crop" — drip and sprinkler), rainwater harvesting mandated by many municipal bye-laws.
- Interstate disputes are settled by tribunals under the Inter-State River Water Disputes Act, 1956 (last amended in 2002; the 2019 amendment bill, proposing a single permanent tribunal, is still pending) — Cauvery, Krishna, Mahadayi, Ravi-Beas.
Minerals and energy resources
- Mineral belts: (i) the North-Eastern Peninsular belt — Chota Nagpur plateau, Odisha-Jharkhand-Chhattisgarh-West Bengal — coal, iron ore, manganese, bauxite, mica; (ii) the South-Western belt — Karnataka-Goa — iron ore, ferrous metals, bauxite; (iii) the North-Western belt — Rajasthan-Gujarat — copper (Khetri), zinc-lead (Zawar, Rampura Agucha), marble, gypsum, petroleum.
- Iron ore: haematite (Odisha — Barbil-Joda, Jharkhand — Noamundi, Chhattisgarh — Bailadila, Karnataka — Bellary-Hospet) and magnetite (Karnataka — Kudremukh; Western Ghats). India is among the top producers and exports ore to Japan, Korea and China.
- Coal: about 97% from Gondwana fields (Jharia, Bokaro, Raniganj, Korba, Singrauli, Talcher) — non-coking and coking; the rest Tertiary (Assam, Meghalaya, Nagaland, J&K) — high sulphur. Nationalised in 1973; Coal India Ltd; commercial mining opened to the private sector in 2020.
- Petroleum and gas: Mumbai High (offshore), Gujarat (Ankleshwar, Kalol), Assam (Digboi — oldest, Naharkatiya, Moran), Krishna-Godavari and Cauvery basins, Rajasthan (Barmer). India imports roughly 85% of crude oil, making energy security a current-affairs staple; exploration is licensed under HELP/OALP with revenue sharing, and the Oilfields (Regulation and Development) Amendment Act, 2024-25 updated the framework.
- Atomic minerals: uranium at Jaduguda (Jharkhand) and Tummalapalle (Andhra Pradesh); thorium in monazite of Kerala and Tamil Nadu beach sands — the basis of India's three-stage nuclear programme.
- Non-conventional energy: solar (Rajasthan, Gujarat, Ladakh; Bhadla solar park), wind (Tamil Nadu — Muppandal, Gujarat, Karnataka), small hydro, biomass, geothermal (Puga, Manikaran), tidal (Gulf of Khambhat and Kachchh — potential only).
- India's installed electricity capacity is roughly 490 GW, with non-fossil sources crossing 50% of installed capacity in 2025 — five years ahead of the NDC target; the stated goals are 500 GW non-fossil by 2030 and net zero by 2070 (Panchamrit, COP26).
- Legal framework: MMDR Act, 1957 (amended 2015 — auction-only allocation and District Mineral Foundation; 2021; 2023 — exploration licence and 24 critical and strategic minerals auctioned by the Centre; 2025 — NMET renamed National Mineral Exploration and Development Trust, minerals addable to existing leases, captive-sale cap removed), National Mineral Policy 2019, National Critical Mineral Mission (2025), mine safety under the OSH&WC Code, 2020 (which repealed the Mines Act 1952 from 21 November 2025), Electricity Act 2003, Energy Conservation Act 2001 (amended 2022 — carbon credit trading scheme, green hydrogen).
Agriculture and the primary economy
- Agriculture and allied activities contribute roughly 16-18% of GVA but support about 45% of the workforce — the core structural problem of disguised unemployment and low productivity.
- Cropping seasons: kharif (sown with the south-west monsoon — rice, maize, jowar, bajra, cotton, groundnut, soyabean), rabi (winter — wheat, barley, gram, mustard), zaid (summer — watermelon, cucumber, fodder).
- Farming types: subsistence and intensive subsistence, shifting (jhum in the North-East), plantation (tea in Assam and the Nilgiris, coffee in Karnataka, rubber in Kerala), commercial and dry-land/rainfed farming.
- Green Revolution (from the mid-1960s): HYV seeds, assured irrigation, chemical fertiliser, pesticides and mechanisation — concentrated in Punjab, Haryana and western UP; it made India self-sufficient in wheat and rice but widened regional inequality, depleted groundwater and skewed nutrient use. Later: White Revolution (Operation Flood, milk), Blue (fisheries), Yellow (oilseeds), Rainbow/Golden (horticulture).
- India leads the world in milk, pulses, jute and spices output and ranks second in rice, wheat, sugarcane, groundnut, and fruits and vegetables; annual foodgrain output is now in the 330-355 million tonne range (year-to-year, per Ministry of Agriculture advance estimates).
- Price and food policy: MSP recommended by the CACP and announced for 23 crops; procurement by FCI; buffer stocks; PDS under the National Food Security Act, 2013; e-NAM for market integration; PM-KISAN income support; PMFBY crop insurance; soil health cards.
Industry, services and infrastructure
- Industrial location factors: raw material, power, market, labour, transport, capital, government policy and agglomeration economies. Weight-losing raw materials (iron ore, coal, sugarcane) pull industry to the source; ubiquitous raw materials pull it to the market.
- Major industrial regions (eight commonly listed): Mumbai-Pune, Hugli (Kolkata), Bengaluru-Tamil Nadu, Gujarat (Ahmedabad-Vadodara), Chota Nagpur, Vishakhapatnam-Guntur, Gurugram-Delhi-Meerut, Kollam-Thiruvananthapuram.
- Key industries: iron and steel (Jamshedpur, Bhilai, Rourkela, Durgapur, Bokaro, Vizag, Salem), cotton textiles (Mumbai, Ahmedabad, Coimbatore), jute (Hugli belt), sugar (UP, Maharashtra), cement, aluminium (Odisha, Chhattisgarh), petrochemicals (Jamnagar, Koyali), automobiles (Chennai, Pune, Gurugram, Sanand), IT and electronics (Bengaluru, Hyderabad, Pune, Noida).
- Services account for roughly 54% of GVA — IT-BPM, finance, trade, tourism, telecom, logistics — and drive India's export earnings alongside remittances.
- Transport and logistics: national highways of about 1.46 lakh km (around 2% of road length carrying about 40% of traffic); Indian Railways with roughly 68,000 route km; 12 major ports plus about 200 non-major ports; inland waterways (NW-1 Ganga, NW-2 Brahmaputra). Programmes: Golden Quadrilateral and N-S/E-W corridors, Bharatmala, Sagarmala, Dedicated Freight Corridors, UDAN, PM Gati Shakti and the National Logistics Policy 2022.
- Macro frame: India is among the largest economies by nominal GDP and third by PPP; planning moved from Five-Year Plans to NITI Aayog (2015) with 15-year vision and 3-year action documents; the fiscal regime includes GST with 5%/18%/40% slabs since 22 September 2025 (a merit/nil category applies to essentials), the Income-tax Act, 2025 in force from 1 April 2026, and the four Labour Codes in force from 21 November 2025, which replaced the Factories, Minimum Wages, Industrial Disputes and BOCW Acts.
- Sustainability: resource conservation, circular economy and recycling, EPR under the Plastic Waste and E-Waste Rules, Perform-Achieve-Trade energy efficiency, the Carbon Credit Trading Scheme, and sustainable development as framed by the Brundtland Report and Agenda 21.
Key points
- Resource - a usable element of the environment; usability depends on technology, accessibility and cost.
- Stock vs reserve - stock cannot yet be used for want of technology; a reserve is usable now.
- Nine-fold land-use classification - the official framework; net sown area is about 140 Mha of 328.7 Mha.
- Cropping intensity - gross cropped area as a percentage of net sown area; raised by irrigation.
- Alluvial soil - most extensive and most productive; black soil is the cotton soil of the Deccan trap.
- Laterite soil - leached in heavy rain, acidic, used for plantation crops and as building brick.
- Forest cover - about 21.8% of area (ISFR 2023) against the 1988 policy target of 33%.
- Utilisable water - about 1,122 BCM of roughly 1,999 BCM total annual resource; groundwater supplies most irrigation.
- Water stress thresholds - below 1,700 m³ per capita is stressed, below 1,000 m³ is scarcity.
- Gondwana coal - about 97% of reserves, low sulphur; Tertiary coal in the North-East is high in sulphur.
- Haematite vs magnetite - haematite (~60-68% Fe) dominates production; magnetite has higher iron content but is less exploited.
- Crude oil import dependence - around 85%, the central energy-security concern.
- Non-fossil capacity - crossed 50% of installed capacity in 2025; target 500 GW by 2030, net zero by 2070.
- MMDR Act 1957 - the governing mining law; auction-only allocation since 2015, critical minerals added in 2023.
- Green Revolution - HYV + irrigation + fertiliser; raised wheat and rice output, caused regional and ecological imbalance.
- MSP and CACP - administered price support for 23 crops; procurement and PDS under NFSA 2013.
- Sectoral paradox - agriculture is about 16-18% of GVA but about 45% of employment; services are about 54% of GVA.
- Industrial location - weight-losing raw materials pull plants to the source (steel in Chota Nagpur), markets pull others.
Formulas and examples
Irrigation intensity (%) = (Gross irrigated area ÷ Net irrigated area) × 100
Population density = Population ÷ Area (persons per km²)
Per capita water availability (m³/yr) = Total annual water resource (m³) ÷ Population
Reserve-to-production (R/P) ratio (years) = Proved reserves ÷ Annual production (same unit of mass or volume)
Plant Load Factor, PLF (%) = Actual energy generated (kWh) ÷ (Installed capacity in kW × hours in period) × 100
CAGR (%) = [(Final value ÷ Initial value)1/n − 1] × 100, n = number of years
Location Quotient, LQ = (Local share of an industry's employment) ÷ (National share of that industry's employment); LQ > 1 means local concentration
- Cropping intensity: net sown area 140 Mha, gross cropped area 222 Mha → CI = (222 ÷ 140) × 100 = 158.6%. If net irrigated area is 73 Mha, irrigation coverage = (73 ÷ 140) × 100 = 52.1% of net sown area.
- Per capita water availability: annual water resource 1,999 BCM = 1.999 × 10¹² m³; population 1.44 billion = 1.44 × 10⁹ → 1.999 × 10¹² ÷ 1.44 × 10⁹ = 1,388 m³ per person per year — below the 1,700 m³ stress line but above the 1,000 m³ scarcity line.
- Coal R/P ratio: proved coal reserves about 193 billion tonnes, annual production about 1.05 billion tonnes → 193 ÷ 1.05 ≈ 184 years at current output. Note the caution: an R/P ratio assumes constant production and no new discovery, so it is an indicator, not a forecast.
- Plant Load Factor of a solar park: a 100 MW plant generates 175 million kWh in a year. Maximum possible = 100,000 kW × 8,760 h = 876 million kWh → PLF = (175 ÷ 876) × 100 = 20.0%. A coal station at 65% PLF on the same 100 MW would generate 0.65 × 876 = 569 million kWh — which is why installed capacity share and generation share differ sharply.
- Growth rate: GDP rises from ₹100 lakh crore to ₹160 lakh crore in 5 years → CAGR = (1.60)1/5 − 1 = 9.86% per year in nominal terms; if inflation averaged 5%, real growth is roughly 9.86 − 5 ≈ 4.9%.
- Population density: Census 2011 population 1,210.85 million over a reported area of about 3.166 million km² → 1,210.85 ÷ 3.166 ≈ 382 persons/km², the published census figure (reported area is slightly less than the geographical area of 3.287 million km²).
| Feature | Gondwana coal | Tertiary coal |
|---|---|---|
| Age | About 250 million years | About 55 million years |
| Share of reserves | ~97% | ~3% |
| Location | Damodar, Son, Mahanadi, Godavari valleys | Assam, Meghalaya, Nagaland, J&K |
| Quality | Better carbon, low sulphur; includes coking coal | High moisture and sulphur |
| Indicator | Agriculture & allied | Industry | Services |
|---|---|---|---|
| Approx. share of GVA | 16-18% | 27-30% | 53-55% |
| Approx. share of employment | ~45% | ~25% | ~30% |
| Implication | Low output per worker | Moderate | High output per worker |
Where it is used
- Mining and metals: Coal India, NMDC, Hindustan Zinc, Vedanta, Tata Steel and SAIL — roles in mine planning, resource estimation under UNFC, and MMDR/DMF compliance.
- Energy and utilities: NTPC, NHPC, SECI, Adani Green, ReNew — site selection for solar and wind parks using insolation and wind-density atlases (NIWE), PLF analysis and RPO compliance.
- Agri-business and food processing: ITC, Nestlé, Amul, fertiliser companies and agri-fintechs — sourcing maps built on soil type, rainfall and cropping-pattern data.
- Planning and consulting: town and country planning departments, NITI Aayog, state remote-sensing centres, NRSC land-use/land-cover mapping, and district and watershed development plans.
- Logistics and infrastructure: route and warehouse location under PM Gati Shakti, Sagarmala port-led industrialisation, dedicated freight corridor traffic studies.
- Banking, insurance and ESG research: agricultural credit and crop-insurance underwriting, commodity and sector research desks, climate-risk and sustainability reporting (BRSR for listed companies).
Interview questions
- Q: Why are resources said to be "created" rather than found? A: A substance becomes a resource only when technology, accessibility and economics make it usable — uranium and petroleum were worthless rock and seepage before the technology existed.
- Q: What is the difference between a stock and a reserve? A: A reserve is the part of a developed resource that can be used with present technology and economics; a stock exists in nature but cannot yet be tapped, such as hydrogen in water.
- Q: Why is black soil best for cotton? A: It forms from Deccan basalt, is clayey and retains moisture for long, and is rich in lime, iron, magnesium and potash — matching cotton's long dry growing season.
- Q: Why is groundwater depletion severe in Punjab and Haryana despite good canal networks? A: Subsidised or free power, assured MSP procurement of rice and wheat, and water-intensive cropping drive extraction well beyond recharge.
- Q: Why is 97% of India's coal from Gondwana formations rather than Tertiary? A: Gondwana basins preserved thick, extensive Permian coal seams in the Damodar, Son, Mahanadi and Godavari valleys; Tertiary coal is limited to small, high-sulphur deposits in the North-East.
- Q: India's non-fossil capacity has crossed 50% — why is non-fossil *generation* still a much smaller share? A: Solar and wind run at PLFs of roughly 20% and 25% against about 65% for coal, so installed capacity overstates their contribution to energy delivered.
- Q: Why is the iron and steel industry concentrated in the Chota Nagpur plateau? A: Iron ore, coking coal, limestone, dolomite and manganese occur close together, with cheap labour, water from the Damodar and rail links to Kolkata port.
- Q: What changed in mineral allocation after the MMDR Amendment Act, 2015? A: Mineral concessions must be granted by auction instead of discretionary allotment, and a District Mineral Foundation funded by a levy on lease-holders was created for affected communities.
- Q: Agriculture is under a fifth of GVA but employs nearly half the workforce — what does that imply? A: Very low output per agricultural worker and surplus labour on the land; raising rural incomes requires moving workers into manufacturing and services, not just higher crop output.
- Q: What are the criticisms of the Green Revolution? A: It was confined to irrigated wheat and rice belts, widened inter-regional and inter-class disparity, depleted groundwater, caused nutrient imbalance and salinity, and narrowed crop diversity.
- Q: Why does India emphasise critical minerals now? A: Lithium, cobalt, nickel, graphite and rare earths are essential for batteries, electronics and renewables; India imports most of them, so the 2023 MMDR amendment and the 2025 National Critical Mineral Mission push exploration, auctions and overseas acquisition.
- Q: Give one example of a resource that is renewable but being exhausted. A: Groundwater — it is replenished annually, yet extraction exceeds recharge in many blocks of Punjab, Rajasthan and Tamil Nadu, which the CGWB classifies as over-exploited.
Common mistakes
- Writing that forest cover and recorded forest area are the same — recorded forest area is a legal/administrative category, while forest cover is measured from satellite imagery of land with over 10% canopy on one hectare or more.
- Quoting the 33% forest figure as an achievement rather than as the National Forest Policy 1988 *target*.
- Confusing total water resource (about 1,999 BCM) with utilisable water (about 1,122 BCM) in per-capita calculations.
- Treating installed capacity share as generation share for renewables — PLF must be applied.
- Mixing up cropping intensity with irrigation intensity, or dividing by gross instead of net sown area.
- Naming Kolar as a working gold mine (it closed in 2001) or quoting withdrawn figures without saying the source and year — examiners accept "about X, as per [source, year]" far more readily than a confident wrong number.
- Listing minerals without their states, or states without their mining centres — marks in these papers come from the place names (Bailadila, Khetri, Jharia, Tummalapalle), not from generalities.
Related topics
Physical geography of India · Population and settlement geography · Agricultural geography and cropping patterns · Industrial location theories (Weber, Lösch) · Economic geography and regional planning · Environmental geography and sustainable development