Manufacturing Industries

This is Chapter 6 of Contemporary India – II: 13 pages (58–70). Its parts: the importance of manufacturing and the contribution of industry; the classification of industries; agro-based industries (cotton, jute, sugar, with a value-chain chart, Fig. 6.1, and a map of cotton, woollen and silk centres); mineral-based industries (iron and steel with a process chart and a map of steel plants; aluminium with two charts; chemicals, fertilisers, cement, automobiles, IT and electronics with a map of software technology parks); and industrial pollution and its control (an NTPC box). It ends with 2 MCQs, 2 short and 2 long questions, a one-word activity, a project and a word search. Every number is recomputed; our additions are marked †. The book's survey is broad but short, so we use eight concept sections.

• Builds on jess104 (cotton, jute, sugarcane — the raw materials of agro-industries) and jess105 (iron ore, bauxite, coal, limestone and the power that factories need; Chota Nagpur as a storehouse of minerals).
• Goes further in legy105 (Secondary Activities, Class 12: location factors, footloose industries, the iron and steel and cotton textile industries in more depth) and legy209 (pollution). Leads into jess107 (the transport that moves raw materials and goods).
• Economics: jess202 (Sectors of the Indian Economy — the secondary sector and employment) and jess204 (globalisation and competition); keec102 (public sector and small-scale industry policy, 1950–90).
• UPSC, honestly: Prelims has asked the chapter's location logic — cement needs limestone and gypsum (1988, 1989), sugar is a cooperative industry (1991), aluminium at Renukut follows cheap power (2002), jute suffered most from Partition (1987), textiles employ the most workers (1979, 1988), the steel plants' foreign partners (1980) and a place–industry match (1998); plus the small-scale definition (1992). Mains GS1/GS3 asks about decentralised cotton weaving (2013), sugar mills moving south (2013), steel plants away from raw materials (2020), industrial pollution of rivers (2024) and planning for regional balance (2026). We link 16; broader industrial-policy questions sit on legy105 and the economics chapters.

• Manufacturing = processing raw materials into more valuable goods; the secondary sector. Why it matters: jobs beyond farming, modern agriculture, less regional disparity, exports, value addition.
• Classify by raw material (agro/mineral), role (basic/consumer), capital (small scale: ₹1 crore ceiling in the book), ownership (public/private/joint/cooperative), bulk (heavy/light).
• Cotton: first mill Mumbai 1854; spinning centralised (Maharashtra, Gujarat, Tamil Nadu), weaving decentralised. Jute: Rishra 1855; Hugli belt; India largest producer, second exporter after Bangladesh.
• Sugar: bulky cane loses sucrose → mills near fields; seasonal → cooperatives; shifting to Maharashtra and the south (more sucrose, longer crushing season).
• Iron and steel: basic, heavy; ore : coking coal : limestone ≈ 4 : 2 : 1; Chota Nagpur concentration. Aluminium: 4–6 t bauxite → 2 t alumina → 1 t metal; power is key. Cement: limestone, silica, gypsum; first plant Chennai 1904.
• Pollution of air, water, land, noise; 1 L waste water spoils ≈ 8 L freshwater; treatment: primary (mechanical), secondary (biological), tertiary (recycling). NTPC: ISO 14001, ash utilisation, green belts.

Manufacturing is the production of goods in large quantities after processing raw materials into more valuable products — paper from wood, sugar from cane, steel from iron ore, aluminium from bauxite; even yarn, itself manufactured, becomes cloth. Workers in steel, car, brewery, textile and bakery units are in the secondary sector. A country's economic strength is measured by the development of its manufacturing. NCERT's reasons why manufacturing is the backbone of development:

• It helps modernise agriculture and reduces dependence on farm income by creating jobs in the secondary and tertiary sectors.
• Industrial development is a precondition for removing unemployment and poverty — the philosophy behind public sector and joint sector industries, which also aimed to cut regional disparities by setting up industries in tribal and backward areas.
• Exports of manufactured goods expand trade and earn foreign exchange.
• Countries that turn raw materials into a wide range of higher-value goods prosper; India's prosperity lies in diversifying manufacturing quickly.

Agriculture and industry move hand in hand: agro-industries raised farm productivity; they depend on farms for raw materials and sell farmers pumps, fertilisers, pesticides, PVC pipes, machines and tools. In a globalised world, self-sufficiency is not enough — goods must match international quality to compete.

NCERT's five criteria: source of raw material — agro-based and mineral-based; main role — basic or key industries, whose products feed other industries (iron and steel, copper and aluminium smelting), and consumer industries (sugar, toothpaste, paper, sewing machines, fans); capital investment — a small-scale industry is defined by the maximum investment allowed in its assets, ‘at present’ ₹1 crore in the book; ownership — public (BHEL, SAIL), private (TISCO, Bajaj Auto, Dabur), joint (Oil India in the book) and cooperative (sugar in Maharashtra, coir in Kerala); bulk and weight — heavy (iron and steel) and light (electrical goods).

The textile industry holds a unique place: it contributes significantly to industrial output, jobs and foreign exchange, and is the only industry self-reliant and complete in the value chain — from fibre to the highest value-added product. Cotton textiles: in ancient India cloth was hand-spun and handloom-woven; power-looms came after the 18th century; traditional industries suffered under colonial rule as they could not compete with mill-made cloth from England. The first successful mill came up in Mumbai in 1854; demand for cloth in Britain during the two world wars boosted the industry. It first concentrated in the cotton belt of Maharashtra and Gujarat — raw cotton, market, transport and ports, labour and a moist climate. It supports farmers, pickers and workers in ginning, spinning, weaving, dyeing, designing, packaging and tailoring, and creates demand for chemicals, dyes, packaging and engineering.

Spinning stays centralised in Maharashtra, Gujarat and Tamil Nadu; weaving is highly decentralised — handloom, powerloom and mills — to use traditional skills and designs in cotton, silk, zari and embroidery. India's spinning is world class, but weaving supplies low-quality fabric, unable to use much of the fine yarn. Hand-spun khadi gives large-scale employment in homes as a cottage industry.

Jute textiles: India is the largest producer of raw jute and jute goods and the second exporter after Bangladesh. The first jute mill was set up at Rishra near Kolkata in 1855; at Partition in 1947 the mills stayed in India but three-fourths of the jute-growing area went to East Pakistan (now Bangladesh). Most mills lie in a narrow belt along the Hugli, because of: nearby jute-growing areas, cheap water transport backed by rail and road, abundant water for processing raw jute, cheap labour from West Bengal, Bihar, Odisha and Uttar Pradesh, and Kolkata's banking, insurance and port for export.

India is the second largest producer of sugar (NCERT) and first in gur and khandsari. Cane is bulky and loses sucrose in haulage, so mills stay near cane fields — in Uttar Pradesh, Bihar, Maharashtra, Karnataka, Tamil Nadu, Andhra Pradesh, Gujarat, Punjab, Haryana and Madhya Pradesh; sixty per cent of mills are in Uttar Pradesh and Bihar (book). The industry is seasonal, so it suits the cooperative sector. Mills are now shifting to the south and west, especially Maharashtra: cane there has higher sucrose, the cooler climate gives a longer crushing season, and cooperatives are more successful.

Iron and steel is the basic industry: heavy, medium and light industries all depend on it for machinery; steel goes into engineering goods, construction, defence, medical, telephonic and scientific equipment and consumer goods. Production and consumption of steel is often taken as an index of development. It is a heavy industry because raw materials and products are heavy and bulky, so transport costs are high. Iron ore, coking coal and limestone are needed in a ratio of about 4 : 2 : 1, with some manganese to harden the steel; finished steel also needs efficient transport to markets. The Chota Nagpur plateau has the greatest concentration of steel plants — low-cost iron ore, high-grade raw materials close together, cheap labour and a large home market.

Aluminium smelting is India's second most important metallurgical industry. Aluminium is light, resists corrosion, conducts heat, is malleable and strong when alloyed; it goes into aircraft, utensils and wires and increasingly replaces steel, copper, zinc and lead. Smelters are in Odisha, West Bengal, Kerala, Uttar Pradesh, Chhattisgarh, Maharashtra and Tamil Nadu. Bauxite, the raw material, is a bulky, dark reddish rock. The two prime location factors: a regular supply of electricity and an assured, cheap source of raw material.

The chemical industry is growing and diversifying, with both large and small units. Inorganic chemicals — sulphuric acid (for fertilisers, synthetic fibres, plastics, adhesives, paints, dyes), nitric acid, alkalis, soda ash (for glass, soaps, detergents, paper) and caustic soda — are made all over the country. Organic chemicals include petrochemicals for synthetic fibres, synthetic rubber, plastics, dyes, drugs and pharmaceuticals; their plants are near oil refineries or petrochemical plants. The chemical industry is its own largest consumer.

The fertiliser industry makes nitrogenous fertilisers (mainly urea), phosphatic fertilisers and ammonium phosphate (DAP), and complex NPK fertilisers. Potash is entirely imported — India has no commercially usable reserves. After the Green Revolution the industry spread: Gujarat, Tamil Nadu, Uttar Pradesh, Punjab and Kerala give about half the output; Andhra Pradesh, Odisha, Rajasthan, Bihar, Maharashtra, Assam, West Bengal, Goa, Delhi, Madhya Pradesh and Karnataka are other significant producers.

Cement is essential for houses, factories, bridges, roads, airports and dams. It needs bulky, heavy raw materials — limestone, silica and gypsum — plus coal, electric power and rail transport. Plants in Gujarat are placed to reach the Gulf market. The first plant came up in Chennai in 1904; the industry expanded after Independence. Automobiles — trucks, buses, cars, motorcycles, scooters, three-wheelers and multi-utility vehicles — grew healthily after liberalisation brought new models; centres: Delhi, Gurugram, Mumbai, Pune, Chennai, Kolkata, Lucknow, Indore, Hyderabad, Jamshedpur and Bengaluru.

Electronics covers transistor sets, televisions, telephones, cellular telecom, exchanges, radars, computers and telecom equipment. Bengaluru has emerged as India's electronic capital; other centres are Mumbai, Delhi, Hyderabad, Pune, Chennai, Kolkata, Lucknow and Coimbatore; the major concentrations are Bengaluru, Noida, Mumbai, Chennai, Hyderabad and Pune. A major impact has been employment; continued growth in hardware and software is the key to the IT industry's success.

Industries — and thermal power plants — cause four kinds of pollution. Air: undesirable gases such as sulphur dioxide and carbon monoxide, and particulates (dust, sprays, mist, smoke) from chemical and paper factories, brick kilns, refineries, smelters and fossil-fuel burning; toxic gas leaks such as the Bhopal gas tragedy can do long-term harm. Water: organic and inorganic wastes from paper and pulp, chemicals, textiles and dyeing, refineries, tanneries and electroplating — dyes, detergents, acids, salts, heavy metals like lead and mercury, pesticides, fertilisers, plastics; the major solid wastes are fly ash, phospho-gypsum and iron and steel slag. Thermal pollution: hot water released before cooling. Nuclear wastes cause cancers, birth defects and miscarriages. Land: dumped glass, chemicals, effluents, packaging, salts and garbage make soil useless and seep into groundwater. Noise: from machinery, generators, saws and drills — irritation, stress, hearing loss, higher heart rate and blood pressure.

NTPC shows the way (box): the power corporation holds ISO 14001 certification for its environment management system and preserves water, oil, gas and fuel where it builds plants, through (a) optimum use of equipment with the latest techniques, (b) minimising waste by maximising ash utilisation, (c) green belts and afforestation, (d) ash-pond management, ash-water recycling and liquid-waste management, and (e) ecological monitoring and online databases for all its stations. Sustainable development, NCERT concludes, integrates economic development with environmental concerns.

Questions in the text, five activities and a project. Outlines below.

Two MCQs, two 30-word and two 120-word questions, a one-word activity and a word search. Try first, then open.

Numbers

One-liners

• Manufacturing turns raw materials into more valuable goods.
• Basic industries feed other industries; consumer industries feed people.
• Spinning is centralised; weaving is decentralised.
• Jute mills line the Hugli: jute, water, transport, labour, Kolkata.
• Sugarcane loses sucrose in haulage, so mills stay near fields.
• Steel is heavy and basic; Chota Nagpur has it all close together.
• Aluminium follows cheap, regular electricity.
• Cement follows limestone.
• IT follows people and connectivity.
• Treat effluents: mechanical, biological, then recycle.

Traps to avoid

• The small-scale ceiling of ₹1 crore is outdated (MSME definitions revised 2020 and 2025).
• Oil India is no longer a joint-sector company (government-owned since 1981).
• Sugar: ‘second producer’ is outdated — India led in 2021–22.
• Fig. 6.5's 18,600 kWh is per tonne of aluminium, not of ore.
• Jute was the industry most hit by Partition.
• Exercise 1(ii): telephones and computers = electronic industry.
• Bhopal 1984 leaked methyl isocyanate, not dioxin.
• Durgapur was built with British help; Bhilai and Bokaro Soviet; Rourkela West German.
• Potash is entirely imported.

Prelims — what UPSC asks

• From this chapter: location logic — cement and limestone/gypsum (1988, 1989), sugar cooperatives (1991), Renukut and cheap power (2002), jute and Partition (1987), textiles as the biggest employer (1979, 1988), steel-plant partners (1980), the place–industry match (1998) and the small-scale definition (1992). Learn the three map tables, and steel plants with state, owner, year and partner.
• Ranks and limits change (sugar, MSME, steel output): quote NCERT's with a ‘then’ and check the latest ministry figures before the exam.

Mains — where it appears and how to answer

• GS1: decentralised cotton textiles (2013), sugar mills moving south (2013), steel plants away from raw materials (2020), planning and regional imbalance (2026). GS3: industrial pollution of rivers and remedies (2024). Use the chapter's location factors, examples and the three-stage treatment; add dated laws and programmes.
• On public vs private enterprise, land for industry and pollution, set out positions side by side with their authors; give laws and court orders as dated facts.

Tap an option. NCERT's own exercise questions come first; the rest test the figures and common confusions.

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