Why this chapter matters for UPSC: Industrial location questions (iron and steel plants, cotton textile centres) are standard GS1 map-based questions. The classification of industries by ownership (public, private, cooperative), location factors, and IT sector growth are core GS3 economic topics. India's industrial policy — SEZs, PLI schemes, Make in India — builds directly on this foundation.


PART 1 — Quick Reference Tables

Classification BasisTypeExamples
Raw materialAgro-basedCotton textile, jute, sugar, edible oil, food processing
Raw materialMineral-basedIron and steel, cement, aluminium, machine tools
Raw materialMarine-basedFish processing, seafood, seaweed products
Raw materialForest-basedPaper and pulp, furniture, lac, matchsticks
SizeLarge-scaleSAIL steel plants, automobile (Maruti, Tata Motors), petrochemicals
SizeMedium-scaleAuto components, pharmaceuticals
SizeSmall-scalePowerloom, hosiery, toys, sports goods (Jalandhar)
SizeCottage/HouseholdWeaving, pottery, cane and bamboo work, handloom sarees
OwnershipPublic sectorBhilai Steel (SAIL), BHEL, HAL, ONGC, NTPC, Indian Railways
OwnershipPrivate sectorTata Steel (Jamshedpur), Reliance Industries, Infosys, Wipro
OwnershipJoint sectorMaruti Suzuki (originally; now mostly private)
OwnershipCooperative sectorAmul (GCMMF), IFFCO (fertilisers), sugar cooperatives (Maharashtra)
Iron and Steel PlantLocationAided ByYearOperator
Jamshedpur (TISCO)Jharkhand (Subarnarekha-Kharkai confluence)Private (Tata)1907Tata Steel
BhilaiChhattisgarhUSSR (Russia)1959SAIL
RourkelaOdishaWest Germany1959SAIL
DurgapurWest BengalUK (Britain)1959SAIL
BokaroJharkhandUSSR (Russia)1964SAIL
Vishakhapatnam (VSP)Andhra PradeshUSSR (Russia)1992RINL
SalemTamil Nadu1982SAIL
BhadravatiKarnataka1923 (expanded)VISL/SAIL

PART 2 — Detailed Notes

Classification of Industries

Key Term

By Size (investment in plant and machinery, as per MSME Act 2006/revised 2020):

Micro enterprises: Investment up to ₹1 crore; turnover up to ₹5 crore Small enterprises: Investment up to ₹10 crore; turnover up to ₹50 crore Medium enterprises: Investment up to ₹50 crore; turnover up to ₹250 crore Large-scale industries: Beyond MSME thresholds; heavy machinery, large capital

By Ownership:

  • Public Sector: Owned by government — Central PSUs (CPSEs) like SAIL, BHEL, HAL, ONGC, Coal India, NTPC, Indian Oil. Navratna, Maharatna, Miniratna status based on profitability and scale.
  • Private Sector: Owned by individuals/companies — Tata Steel, Reliance Industries, Infosys, Wipro, Bajaj Auto.
  • Joint Sector: Shared ownership — government + private. Example: Maruti Udyog (originally Government of India + Suzuki Japan).
  • Cooperative Sector: Owned and managed by producers or workers — Amul (Gujarat Cooperative Milk Marketing Federation), IFFCO (Indian Farmers Fertiliser Cooperative), Lijjat Papad.

MSMEs' Importance:

  • ~7.83 crore MSME enterprises registered on Udyam portal + Udyam Assist Platform (PIB, February 2026)
  • Contribute ~30% of GDP, 45% of exports, 110 million employment
  • MSME Ministry schemes: MUDRA Yojana (credit), Udyam registration, SFURTI (cluster development), ZED certification

Iron and Steel Industry

UPSC Connect

UPSC GS1 — Industrial Location:

Raw materials required: Iron ore + Coking coal + Limestone (flux) + Manganese + Water + Power

Why Jamshedpur was chosen (1907): Proximity to Jharia and Raniganj coking coal + iron ore from Singhbhum + limestone from nearby areas + Subarnarekha and Kharkai rivers for water + well-connected by rail. India's first iron and steel plant — set up by Jamsetji Tata.

SAIL (Steel Authority of India Ltd.): PSU; owns Bhilai, Durgapur, Rourkela, Bokaro, Salem, Bhadravati plants; headquartered in New Delhi.

India's Steel Position:

  • India = 2nd largest steel producer globally (2024) — 151.1 MT (FY2024-25); well ahead of Japan (84 MT in 2024)
  • China = 1st (produces ~55% of world's steel)
  • India's National Steel Policy target: 300 MT production capacity by 2030-31
  • India is also a significant steel importer — faces dumping from China

Bhilai (Chhattisgarh): SAIL's largest and most modern integrated steel plant; Russia-aided (1959); located for access to Bailadila iron ore (Bastar) and Korba coal (Chhattisgarh).

RINL (Rashtriya Ispat Nigam Ltd.) — Vishakhapatnam Steel Plant: Only coastal steel plant in India; uses sea route to import coking coal; started 1992; known as "Vizag Steel."

Cotton Textile Industry

Key Term

History:

  • India's oldest industry in the modern sense
  • First cotton mill established in Mumbai in 1854 by Cowasji Nanabhoy Davar
  • Concentrated in Maharashtra (Mumbai = "Cottonopolis") and Gujarat (Ahmedabad = "Manchester of India")

Current Status:

  • India = major textile and apparel exporter — ~$36–38 billion (FY2024-25); among world's top exporters
  • India = 2nd largest cotton producer (after China)
  • Tirupur (Tamil Nadu) = largest knitwear cluster; Ludhiana (Punjab) = woollen knitwear; Surat (Gujarat) = synthetic textiles; Varanasi/Kanchipuram = silk sarees (GI tagged)
  • Handloom sector: 35 lakh weavers; supports cottage industry; many GI tags (Pochampally ikkat, Chanderi, Madhubani)

Challenges:

  • Competition from Bangladesh and Vietnam (lower labour costs)
  • Old machinery in organised mills (especially mill towns)
  • GST compliance burden on small units
  • Post-COVID supply chain disruption

PLI Scheme for Textiles (2021): ₹10,683 crore over 5 years; focus on MMF (man-made fibre) and technical textiles — sectors where India lags China.

Information Technology Industry

UPSC Connect

UPSC GS3 — IT Industry and Economic Growth:

Scale:

  • India's IT-BPM industry revenue: ~$283 billion (FY2024-25, NASSCOM) — up from $254 billion in FY23-24
  • IT exports: ~$224 billion (FY2024-25) — up from ~$200 billion in FY23-24
  • Employment: ~5.8 million directly (FY2024-25); ~13 million indirectly
  • India supplies ~55% of the world's offshore IT services

Major Hubs:

  • Bengaluru: "Silicon Valley of India / Asia" — ITPL (Whitefield), Electronic City; HQ of Infosys, Wipro, Biocon
  • Hyderabad: HITEC City — Google, Microsoft, Amazon India HQs; Cyberabad
  • Chennai: Chennai-Sholinganallur-OMR corridor; TCS, Cognizant, HCL
  • Pune: Rajiv Gandhi Infotech Park, Hinjewadi
  • NCR (Gurgaon, Noida): NASSCOM, financial services BPO
  • Mumbai: BFSI (Banking, Financial Services, Insurance) tech hub

Key Companies:

  • TCS (Tata Consultancy Services) — India's most valuable company; ~$29 billion revenue
  • Infosys — N.R. Narayana Murthy; Bengaluru; ~$18 billion revenue
  • Wipro — ~$11 billion; Bengaluru
  • HCL Technologies — Noida; ~$13 billion
  • Tech Mahindra — Pune

NASSCOM: National Association of Software and Services Companies — apex industry body; publishes annual IT industry report; lobbies for sector-friendly policy.

Startup Ecosystem:

  • India = 3rd largest startup ecosystem globally; 2,23,000+ DPIIT-recognized startups (March 2026) — nearly doubled from 2024
  • ~131 unicorns (startups valued >$1 billion, May 2026; Tracxn) — 3rd globally after USA and China
  • Startup India Initiative (2016); Fund of Funds; SIDBI support

Industrial Location Factors

Explainer

Factors determining where industries locate:

  1. Raw material availability: Heavy industries locate near raw materials (steel plants near coal and iron ore)
  2. Power supply: Cheap and reliable electricity; thermal plants in coal-rich states; hydro-power attracted aluminium smelters
  3. Water: Steel, paper, chemicals require large water volumes; location near rivers or reservoirs
  4. Labour: Skilled (IT in Bengaluru-near IISc, IITs) or cheap unskilled (textiles, garments)
  5. Market access: Consumer goods industries near urban markets
  6. Transport: Railways (Jamshedpur on rail network), ports (Vishakhapatnam Steel near port)
  7. Government policy: Special Economic Zones (SEZs — tax holidays, single-window clearance); Production Linked Incentive (PLI) schemes (14 sectors, ₹2 lakh crore+)
  8. Agglomeration economies: Industries cluster together to share infrastructure, suppliers, skilled labour (Pune auto cluster, Tirupur knitwear)

Environmental Concerns of Industrialization:

  • Air pollution: SO₂, NOₓ, PM2.5 from thermal plants, steel plants, cement kilns
  • Water pollution: Industrial effluent into rivers — Ganga pollution (tanneries, textile dyeing), Yamuna (Delhi industries)
  • Hazardous waste: Chemical and pharmaceutical industries; Bhopal gas tragedy (1984) — Union Carbide MIC leak
  • Land degradation: Open-cast mining; fly ash from thermal plants (India generated ~340 MT in FY2024-25, of which 98% was utilized — PIB August 2025; target 100% utilization)
  • Regulations: Environment Protection Act (1986), Water (Prevention and Control of Pollution) Act (1974), Air Act (1981); CPCB (Central Pollution Control Board) + State PCBs

[Additional] 5a. PLI Schemes — 14 Sectors and India's Manufacturing Push

The chapter covers India's industries but lacks the Production Linked Incentive (PLI) scheme framework — the single largest manufacturing policy initiative of independent India — covering 14 sectors with Rs. 1.97 lakh crore outlay and directly tested in UPSC GS3 (Economy, Industries).

Key Term

Key Terms — PLI Schemes:

TermMeaning
PLIProduction Linked Incentive — government pays a percentage incentive on incremental sales above a base year threshold; the more a company produces/sells beyond the baseline, the more incentive it receives; promotes domestic manufacturing
Base YearThe reference year for measuring incremental production; companies earn PLI only on output ABOVE the base year level
Domestic Value Addition (DVA)Requirement to source specified % of inputs locally — prevents "screwdriver assembly" where foreign components are assembled with minimal domestic content
Make in IndiaOverarching initiative (launched September 25, 2014) promoting domestic manufacturing; PLI is the key financial instrument under Make in India 2.0
DPIITDepartment for Promotion of Industry and Internal Trade — nodal department for PLI across most sectors (some sectors have their own ministry as nodal)
UPSC Connect

[Additional] PLI Schemes — Full Data (GS3 — Economy / Industries):

PLI — 14 approved sectors:

#SectorApprox. Outlay (Rs. crore)
1Mobile Manufacturing & Electronic Components40,951 (largest)
2Bulk Drugs / APIs / Key Starting Materials6,940
3Medical Devices3,420
4Automobiles & Auto Components25,938
5Pharmaceuticals (Formulations)15,000
6Specialty Steel6,322
7Telecom & Networking Products12,195
8Electronic / Technology Products5,000
9White Goods (Air Conditioners & LEDs)6,238
10Food Products10,900
11Textile Products (MMF + Technical Textiles)10,683
12High Efficiency Solar PV Modules24,000
13Advanced Chemistry Cell (ACC) Battery18,100
14Drones & Drone Components120
Total~Rs. 1.97 lakh crore

Top 3 sectors by outlay:

  1. Mobile Manufacturing: Rs. 40,951 crore
  2. Automobiles & Auto Components: Rs. 25,938 crore
  3. High Efficiency Solar PV Modules: Rs. 24,000 crore

PLI performance — cumulative data (as of December 31, 2025):

MetricData
Companies/applications approved836 across 14 sectors
Cumulative investment realizedRs. 2.16 lakh crore (exceeds total PLI outlay — shows private investment leverage)
Cumulative production/salesRs. 20.41 lakh crore
Cumulative exportsRs. 8.3 lakh crore
Total incentives disbursedRs. 28,748 crore
Direct + indirect jobs created14.39 lakh

Key insight: PLI has generated Rs. 2.16 lakh crore in investment against the Rs. 1.97 lakh crore total incentive outlay — meaning private investment has already exceeded the government's total liability, demonstrating high leverage.

Mobile manufacturing — flagship success story:

YearMobile Export Value
2014-15Near zero
2022-23Rs. 90,000+ crore
2023-24~Rs. 1.29 lakh crore
2024-25~Rs. 1.73 lakh crore (provisional)

India is now the 2nd largest mobile phone manufacturer globally (after China). Apple manufactures iPhones in India (Tata Electronics, Foxconn).

ACC Battery PLI — strategic importance:

  • ACC = Advanced Chemistry Cell (lithium-ion and future batteries)
  • Rs. 18,100 crore PLI for battery storage manufacturing
  • Directly supports India's EV ambitions (PM Electric Mobility Promotion Scheme) and grid-scale battery storage (KUSUM, solar projects)
  • Companies approved: Ola Electric, Reliance Industries, Hyundai, Lucas TVS, Mahindra

Solar PV PLI — Rs. 24,000 crore:

  • Targets domestic manufacturing of high-efficiency modules
  • India had ~95% import dependence on solar cells/modules (mostly China)
  • PLI aims to create 10+ GW of domestic module manufacturing capacity per annum
  • Approved manufacturers: Adani Solar, ReNew Power, Shirdi Sai, Vikram Solar, Waaree Energies

What PLI is NOT:

  • NOT a subsidy paid in advance (payment is contingent on actual incremental production/sales)
  • NOT a guarantee of success (company must invest first; incentive comes after performance)
  • NOT applicable to all manufactured goods (only the 14 specified sectors)

UPSC synthesis: PLI = GS3 Economy + Industries. Key exam facts: PLI = 14 sectors = total outlay Rs. 1.97 lakh crore; largest sector = Mobile Manufacturing (Rs. 40,951 crore); as of Dec 2025 = 836 companies approved = Rs. 2.16 lakh crore investment = Rs. 20.41 lakh crore sales = Rs. 8.3 lakh crore exports = Rs. 28,748 crore incentives paid = 14.39 lakh jobs; India = 2nd largest mobile manufacturer globally; ACC Battery = Rs. 18,100 crore = for lithium-ion/advanced battery manufacturing; Solar PV PLI = Rs. 24,000 crore = targets ending China import dependence. Prelims trap: PLI covers 14 sectors (NOT 10 or 12 — the number 14 is tested frequently); payment is performance-based (NOT an upfront subsidy — company produces/sells first, then claims incentive based on incremental output); Drones PLI = Rs. 120 crore (smallest sector by outlay — frequently asked as the odd-one-out); semiconductors are NOT part of the 14-sector PLI (semiconductors have a separate India Semiconductor Mission with Rs. 76,000 crore — two distinct schemes); Make in India was launched September 25, 2014 (NOT PLI — PLI was rolled out in phases starting 2020-21; Make in India is the umbrella initiative of which PLI is a tool).

[Additional] 5b. National Green Hydrogen Mission and India's Clean Energy Industry Transition

The chapter covers India's industries but lacks India's National Green Hydrogen Mission (NGHM) — a GS3 mainstay on clean energy and industrial decarbonisation — plus the Green Steel and cement decarbonisation initiatives directly linked to the chapter's steel and construction industry discussion.

Key Term

Key Terms — Green Hydrogen Mission:

TermMeaning
Green HydrogenHydrogen produced by electrolysis of water using renewable electricity (solar/wind) — zero carbon emissions; distinguished from Grey Hydrogen (from fossil fuels) and Blue Hydrogen (fossil fuels with CCS)
Grey HydrogenHydrogen produced from natural gas via Steam Methane Reforming (SMR) — emits 9–12 kg CO₂ per kg H₂; current dominant form (~95% of global hydrogen)
Blue HydrogenGrey hydrogen with Carbon Capture and Storage (CCS) — lower emissions but costly
ElectrolyserDevice that splits water (H₂O) into hydrogen (H₂) and oxygen (O₂) using electricity; key equipment for green hydrogen production; India targets domestic manufacturing
NGHMNational Green Hydrogen Mission — Cabinet approved January 4, 2023; outlay Rs. 19,744 crore; target = 5 MMT (million metric tonnes) of green hydrogen production per annum by 2030
SIGHTStrategic Interventions for Green Hydrogen Transition — Rs. 17,490 crore of NGHM outlay; funds electrolyser manufacturing (Component I) and green hydrogen production/use (Component II)
UPSC Connect

[Additional] National Green Hydrogen Mission — Framework (GS3 — Energy / Environment / Economy):

NGHM — core data:

ParameterData
Cabinet approvalJanuary 4, 2023
Total outlayRs. 19,744 crore (central budget)
SIGHT schemeRs. 17,490 crore (largest component)
Pilot projectsRs. 1,466 crore
R&DRs. 400 crore
HUB district developmentRs. 388 crore
Nodal ministryMinistry of New and Renewable Energy (MNRE)
Production target5 MMT/year of green hydrogen by 2030
Electrolyser targetDomestic manufacturing capacity of 5 GW/year by 2030
Export potentialUSD 8 billion by 2030; USD 100+ billion by 2050
Investment expectedRs. 8 lakh crore total private + public investment by 2030
Jobs~6 lakh direct jobs by 2030
CO₂ reduction~50 million metric tonnes of GHG emission reduction per year by 2030

Green vs Grey vs Blue Hydrogen:

TypeProduction MethodCO₂ EmissionsCost (USD/kg, approx.)
GreySMR from natural gas9–12 kg CO₂/kg H₂$1–2 (cheapest)
BlueSMR + CCS1–3 kg CO₂/kg H₂$2–3
GreenElectrolysis with renewable electricity~0 kg CO₂/kg H₂$3–6 (declining; target $1 by 2030)

SIGHT scheme — two components:

ComponentFocusBudget
Component IElectrolyser manufacturing in India (incentivise domestic electrolyser production)Rs. 4,440 crore
Component IIGreen hydrogen production and use incentive (buy-down of production cost)Rs. 13,050 crore

Green Hydrogen end-uses (industries directly relevant):

IndustryCurrent fuel/inputGreen H₂ substitution
Steel (DRI method)Coking coal + natural gasGreen H₂ replaces fossil reducing agent → "Green Steel"
FertilizersNatural gas for ammonia synthesisGreen H₂ → "Green Ammonia" → Green fertilizers
RefiningGrey hydrogen (from SMR)Green H₂ replaces grey H₂ in hydrotreating
Shipping / Heavy TransportDiesel, HFOGreen H₂ or green ammonia as marine/road fuel

Green Steel — India's commitment:

  • Steel sector = ~7% of India's CO₂ emissions (largest industrial emitter)
  • NMSS (National Mission for Green Steel) — announced 2024; targets 100 MT of green steel capacity by 2030-31 as part of National Steel Policy revision
  • DRI + Green H₂ route: Direct Reduced Iron (DRI/sponge iron) can use green hydrogen instead of coal/gas — India's DRI capacity (~38 MT/year) makes this transition route viable
  • JSW Steel, SAIL exploring green hydrogen pilots at major plants

India's competitive advantage in Green H₂:

  1. Abundant solar and wind resources → cheapest renewable electricity globally (Rs. 2–2.5/kWh)
  2. Engineering talent for electrolyser R&D and manufacturing
  3. Existing petrochemical and fertilizer clusters that can transition to green ammonia/hydrogen
  4. Port infrastructure for green H₂ export (Deendayal Port, JNPT, Paradip targeted as H₂ export hubs)

UPSC synthesis: NGHM = GS3 Energy + Environment. Key exam facts: NGHM = Cabinet approved January 4, 2023 = Rs. 19,744 crore = Ministry of MNRE = target 5 MMT/year green hydrogen by 2030; SIGHT = Rs. 17,490 crore = Component I (electrolyser manufacturing) + Component II (production incentive); electrolyser target = 5 GW/year domestic manufacturing by 2030; green H₂ = electrolysis using renewable electricity = ~0 CO₂; grey H₂ = SMR from natural gas = 9–12 kg CO₂/kg H₂; steel sector = ~7% of India's CO₂ emissions; green H₂ can replace coking coal in DRI steel. Prelims trap: NGHM is under MNRE (NOT Ministry of Petroleum or Ministry of Science & Technology — MNRE is nodal for all renewable energy including hydrogen); Green Hydrogen = electrolysis with renewable electricity (NOT from biomass — biomass hydrogen is "Turquoise Hydrogen"; NOT from nuclear — that's also sometimes called pink hydrogen; only renewables-powered electrolysis = green); SIGHT budget = Rs. 17,490 crore (NOT equal to total NGHM outlay of Rs. 19,744 crore — SIGHT is the largest component but doesn't cover all NGHM spending); production target = 5 MMT/year (NOT 500 MT or 50 MMT — 5 MMT = 5 million metric tonnes per year by 2030).

Exam Strategy

Prelims traps:

  • Jamshedpur (Tata Steel) = PRIVATE sector; Bhilai, Durgapur, Rourkela, Bokaro = PUBLIC sector (SAIL)
  • Bhilai = Russia-aided; Rourkela = Germany-aided; Durgapur = UK-aided — very commonly confused
  • India's FIRST iron and steel plant = Jamshedpur (1907); FIRST government-owned = Bhilai (1959)
  • Ahmedabad = "Manchester of India" for cotton; NOT Mumbai (Mumbai = "Cottonopolis")
  • India = 2nd largest steel producer; China = 1st
  • India's only COASTAL steel plant = Vishakhapatnam (RINL)

Mains angles:

  • Industrial policy: PLI schemes, Make in India, Atmanirbhar Bharat — objectives and challenges
  • MSME sector: Employment generation, credit access, formalization challenges
  • Industrial pollution: Ganga Action Plan, NCAP (National Clean Air Programme)
  • IT industry: GIG economy, AI disruption risk to India's IT advantage

Practice Questions

Prelims:

  1. Which of the following steel plants in India was established with the help of the former Soviet Union (USSR)?
    (a) Jamshedpur
    (b) Bhilai
    (c) Durgapur
    (d) Rourkela

  2. The first cotton textile mill in India was established in:
    (a) Mumbai (1854)
    (b) Ahmedabad (1861)
    (c) Surat (1848)
    (d) Kolkata (1857)

  3. Which city is known as the "Silicon Valley of India"?
    (a) Hyderabad
    (b) Pune
    (c) Bengaluru
    (d) Chennai

Mains:

  1. Discuss the factors that have led to the concentration of the iron and steel industry in the Damodar Valley region of India. What are the challenges faced by India's steel sector? (CSE Mains 2014, GS Paper 1, 12 marks)
  2. India's IT industry has been a major driver of economic growth and employment. However, it faces the twin threats of automation and geopolitical uncertainty. Examine. (CSE Mains 2023, GS Paper 3, 15 marks)