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Non-Rationalised Geography NCERT Notes, Solutions and Extra Q & A (Class 6th to 12th)
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Class 12th Chapters
Fundamentals of Human Geography
1. Human Geography Nature And Scope 2. The World Population Distribution, Density And Growth 3. Population Composition
4. Human Development 5. Primary Activities 6. Secondary Activities
7. Tertiary And Quaternary Activities 8. Transport And Communication 9. International Trade
10. Human Settlements
India - People and Economy
1. Population : Distribution, Density, Growth And Composition 2. Migration : Types, Causes And Consequences 3. Human Development
4. Human Settlements 5. Land Resources And Agriculture 6. Water Resources
7. Mineral And Energy Resources 8. Manufacturing Industries 9. Planning And Sustainable Development In Indian Context
10. Transport And Communication 11. International Trade 12. Geographical Perspective On Selected Issues And Problems
Practical Work in Geography
1. Data – Its Source And Compilation 2. Data Processing 3. Graphical Representation Of Data
4. Use Of Computer In Data Processing And Mapping 5. Field Surveys 6. Spatial Information Technology



Chapter 8 Manufacturing Industries



Manufacturing industries play a crucial role in modern economies by transforming raw materials and processed goods into finished products that satisfy human needs. Besides agricultural products, we rely on manufactured items like clothing, books, vehicles, and medicines.

Industries are important for providing employment and contributing significantly to a nation's income and wealth.

Types Of Industries

Industries can be classified in various ways:

Some industries are referred to as footloose industries. These are industries that are not strongly tied to any specific location by factors like proximity to raw materials or power sources. They often depend on components that can be sourced globally and are typically non-polluting and less capital/labour intensive.



Location Of Industries

The decision of where to locate an industry is influenced by a combination of factors, aiming to minimize production costs and delivery costs to the market. The relative importance of these factors can change over time and varies depending on the type of industry.

Key factors influencing industrial location:

Raw Materials

Industries that use weight-losing raw materials (materials that significantly lose weight during processing, making transport of raw material more expensive than the finished product) are often located close to the source of the raw materials to reduce transport costs. Examples include sugar mills located near sugarcane fields, pulp industries near forests, copper smelting, and pig iron industries near ore sources.

For iron and steel industries, both iron ore and coking coal are weight-losing, making locations near raw material sources economically advantageous (e.g., near coalfields or iron ore deposits).

Industries processing perishable raw materials (like fruits, milk) also tend to be located close to the source to prevent spoilage.

Power

A reliable and sufficient supply of power is essential for operating machinery in industries. Some industries that consume vast amounts of electricity (power-intensive) are often located near power sources (e.g., aluminium industry, synthetic nitrogen manufacturing).

Market

Access to markets, where manufactured goods can be sold, is a crucial factor. Industries producing bulky or high-demand goods, or those whose products are used as raw materials by other nearby industries, may be located near markets (market-oriented).

Example: Cotton textile industry, using non-weight-losing cotton, is often located in large urban centres which serve as both markets and provide labour and other facilities.

Petroleum refineries are often market-based because transporting crude oil is easier than distributing numerous refined products, and many refined products are used as raw materials by industries located near consumer markets (e.g., Mathura, Barauni refineries).

Transport

Efficient transport facilities are needed to bring raw materials to the factory and take finished goods to markets. The cost and efficiency of transport significantly influence location.

Historically, port cities like Mumbai, Chennai, and Kolkata became major industrial centres due to their sea transport links. Industries later spread inland with the development of railway networks along trunk routes.

Labour

Industries require both skilled and unskilled labour. The availability, cost, and mobility of labour are important considerations for location.

India's large population ensures a large pool of mobile labour is available, which is a factor for many labour-intensive industries.

Historical Factors

Colonial history significantly influenced the location of industries in India. Early European traders spurred manufacturing in certain centres. During the later colonial phase, competition from British manufactured goods and discriminatory policies led to the decline of some indigenous manufacturing centres.

The British eventually promoted certain industries in selected areas, leading to the concentration of industries in specific regions like Mumbai, Kolkata, and Chennai, which served as major colonial ports and administrative centres.

Industrial Policy

Government policies also play a role in industrial location. In India, the aim is often to promote economic growth with balanced regional development.

Governments may provide incentives for industries to locate in economically backward or tribal areas (e.g., setting up iron and steel plants in Bhilai and Rourkela). Current policies offer incentives for industries in backward regions.



Major Industries

Certain industries are considered foundational to the overall industrial structure and economic development of a country. Some major industries in India include:



The Iron And Steel Industry

The iron and steel industry is considered a basic industry because it provides the fundamental raw material (iron and steel) needed by almost all other industries, from agriculture (tools) to heavy engineering and construction.

Besides iron ore and coking coal, other essential raw materials are limestone, dolomite, manganese, and fire clay. Since most of these raw materials are weight-losing, the most economical location for iron and steel plants is near the sources of raw materials.

In India, a crescent-shaped region encompassing parts of Chhattisgarh, northern Odisha, Jharkhand, and western West Bengal is rich in high-grade iron ore, good quality coking coal, and other necessary minerals, making it the primary location for this industry.

Map of India showing the locations of major integrated Iron and Steel Plants

The Indian iron and steel industry comprises large integrated steel plants (performing all steps from raw material to finished steel), mini steel mills (often using scrap metal), secondary producers, rolling mills, and ancillary industries.

Integrated Steel Plants

Large integrated steel plants are complex facilities that perform all stages of steel production, from processing raw materials to producing finished steel products.

Historically and currently, several major integrated steel plants operate in India:

TISCO

The Tata Iron and Steel Company (TISCO) plant is located at Jamshedpur (Jharkhand). Its location near the Mumbai-Kolkata railway line (240 km from Kolkata port) is advantageous for transport and export.

Water supply comes from the Subarnarekha and Kharkai rivers.

Iron ore is sourced from Noamundi and Badam Pahar mines (Odisha and Jharkhand), and coal from Joda mines (Odisha) and Jharia and West Bokaro coalfields.

IISCO

The Indian Iron and Steel Company (IISCO) initially set up factories at Hirapur and Kulti, later adding a unit at Burnpur (all in West Bengal), forming a cluster.

These plants are close to Damodar valley coal fields (Raniganj, Jharia, Ramgarh).

Iron ore comes from Singhbhum (Jharkhand). Water is supplied by the Barakar River (a Damodar tributary).

All plants are located along the Kolkata-Asansol railway line. Steel production faced decline in the 1970s, leading to government takeover.

Visvesvaraiya Iron And Steel Works Ltd. (VISL)

Originally the Mysore Iron and Steel Works, VISL is located at Bhadravati (Karnataka), close to the Kemangundi iron ore deposits in the Bababudan hills. Limestone and manganese are also available locally.

However, this region lacks coal. Initially, charcoal from local forests was used as fuel. Electric furnaces were later installed, powered by hydroelectricity from the Jog Falls project.

The Bhadravati river provides water. This plant specializes in producing high-quality specialized steels and alloys.


After Independence, during the Second Five Year Plan (1956-61), three new public sector integrated steel plants were established under Hindustan Steel Limited (HSL) with foreign collaborations:

Rourkela Steel Plant

Set up in 1959 in Sundargarh district (Odisha) with German collaboration. Its location near raw materials (coal from Jharia; iron ore from Sundargarh and Kendujhar) minimizes transport costs for weight-losing inputs. Power comes from the Hirakud hydroelectric project, and water from the Koel and Sankh rivers.

Bhilai Steel Plant

Established in Durg district (Chhattisgarh) with Russian collaboration, production began in 1959. It gets iron ore from Dalli-Rajhara mine and coal from Korba and Kargali coal fields. Water is from the Tanduladam, and power from Korba Thermal Power Station. It's located on the Kolkata-Mumbai railway route. A significant portion of its steel goes to the Hindustan Shipyard at Vishakhapatnam.

Durgapur Steel Plant

Set up in Durgapur (West Bengal) with UK collaboration, production started in 1962. It is located in the Raniganj and Jharia coal belt and receives iron ore from Noamundi. Situated on the main Kolkata-Delhi railway route. Hydel power and water are supplied by the Damodar Valley Corporation (DVC).


The Steel Authority of India Limited (SAIL) was created in 1973 to manage the public sector steel plants.

Bokaro Steel Plant

Established in 1964 at Bokaro (Jharkhand) with Russian collaboration. Its location was optimized for minimizing transport costs, forming a combine with Rourkela; it receives iron ore from the Rourkela region, with returning wagons carrying coal to Rourkela. Other raw materials are sourced locally. Water and hydel power are from the DVC.

Graph showing production trends of finished steel in India


Other Steel Plants

In addition to the historical integrated plants, new steel plants were set up later, particularly during the Fourth Five Year Plan period (1969-74).

Notably, three plants established in South India are located away from the traditional raw material concentrations:

Beyond these large integrated plants, India has over 206 smaller steel units across the country. Most of these are mini steel mills that use scrap iron as their primary raw material and process it in electric furnaces.



The Cotton Textile Industry

The cotton textile industry is one of India's oldest and most traditional industries, historically operating as a cottage industry.

India was globally renowned for fine cotton fabrics like muslin, calicos, and chintz.

Factors favouring the industry's development in India included:

People spinning yarn using a powerloom
Handloom weaving work in a rural setting
Graph showing trends in cotton fabric production in India

During the colonial period, the British initially discouraged indigenous textile production, exporting raw cotton and importing cheaper, factory-produced finished goods from Britain, which impacted India's cottage industry.

The first modern cotton mill in India was established in Mumbai in 1854. Mumbai offered several advantages:

The industry expanded rapidly in the late 19th and early 20th centuries. Key centres emerged like Ahmedabad, which gained importance as textile manufacturing grew.

By 1947, India had 423 mills, but Partition adversely affected the industry as most high-quality cotton growing areas went to Pakistan, leaving India with fewer mills and limited cotton supply.

Post-Independence, the industry recovered and grew.

The cotton textile industry is broadly divided into:

Map of India showing the distribution of Cotton Textile Industries

Cotton is a "pure" raw material (does not lose weight), so location factors like power, labour, capital, and market became more important than strict proximity to cotton fields. The trend shifted towards locating mills near markets to adapt to changing consumer demands.

The Swadeshi movement greatly boosted the industry by promoting Indian-made goods. Railway expansion facilitated the growth of centres away from coastal ports.

Other factors influencing location included availability of hydro-electricity (e.g., Tamil Nadu), access to cheaper labour (e.g., Ujjain, Bharuch), leading to centres like Coimbatore, Madurai, Bengaluru, Nagpur, Indore, Solapur, and Kanpur.

Today, the industry is widely distributed across India, located wherever favourable factors converge.

Major traditional centres near cotton belts include Ahmedabad, Bhiwandi, Solapur, Kolhapur, Nagpur, Indore, and Ujjain. Leading cotton-producing states with strong textile industries are Maharashtra, Gujarat, and Tamil Nadu, along with West Bengal, Uttar Pradesh, Karnataka, and Punjab.

Tamil Nadu has the largest number of mills, primarily producing yarn. Coimbatore is a major hub. Other centres include Chennai, Madurai, Tirunelveli, etc. Karnataka has centres in cotton-growing areas (Davangere, Hubballi). Telangana also has spinning mills in cotton regions (Hyderabad, Warangal), and Guntur in Andhra Pradesh.

In Uttar Pradesh, Kanpur is the largest centre, with others like Modinagar and Agra. West Bengal's mills are concentrated in the Hugli region (Howrah, Kolkata).

Cotton cloth production has increased significantly since Independence. However, the industry faces challenges, including competition from synthetic fabrics.



Sugar Industry

The sugar industry is India's second most important agro-based industry. India is the world's largest producer of both sugarcane and cane sugar, contributing about 8% of global sugar production.

Besides refined sugar, products like khandsari and gur (jaggery) are also made from sugarcane. The industry provides significant direct and indirect employment.

It is a seasonal industry because sugarcane, the raw material, is harvested during a specific season.

Modern sugar production began in India with a mill in Bihar in 1903. The number of factories has increased substantially over the decades.


Location of the Sugar Industry:

Sugarcane is a weight-losing crop; its sucrose content decreases after harvesting, and it loses sugar faster the longer it is transported. For optimal sugar recovery, cane should be crushed within 24 hours of harvest.

Therefore, sugar factories are ideally located within or very close to sugarcane growing regions to minimize transportation time and preserve sucrose content.

Maharashtra has become the leading sugar producer in India, contributing over one-third of the national output.

Uttar Pradesh is the second largest producer, with factories concentrated in two belts: the Ganga-Yamuna doab (Saharanpur, Meerut) and the tarai region (Kheri Lakhimpur, Basti).

Other producing states include Tamil Nadu (Coimbatore, Vellore), Karnataka (Belagavi, Ballari), coastal regions of Andhra Pradesh and Telangana, Bihar (Saran, Champaran), Punjab, Haryana, Madhya Pradesh, and Gujarat.



Petrochemical Industries

Petrochemical industries are a group of rapidly growing industries in India that use products derived from petroleum and natural gas as their primary raw materials.

The demand for organic chemicals increased significantly in the 1960s, leading to the expansion of petroleum refining and the development of new industries based on its by-products.

Petrochemical industries are broadly divided into four sub-groups:

Mumbai serves as a major hub for petrochemical industries. Cracker units (facilities that break down hydrocarbons) are located in various places including Auraiya (U.P.), Jamnagar, Gandhinagar, Hajira (Gujarat), Nagothane, Ratnagiri (Maharashtra), Haldia (West Bengal), and Vishakhapatnam (Andhra Pradesh).

Key organizations in the petrochemical sector include IPCL (public sector, manufacturing polymers, chemicals, fibres), Petrofils Cooperative Limited (joint venture, producing polyester and nylon yarn), and CIPET (training in petrochemical technology).

Polymers like polyethylene, derived from crude oil refining, are widely used as raw materials in the plastic industry. Plastics are valued for their strength, flexibility, resistance to water/chemicals, and low cost.

Plastic polymer production began in India using other organic chemicals before shifting to naphtha-based industries (e.g., NOCIL in Mumbai). Major plastic material producers include plants at Mumbai, Barauni, Mettur, Pimpri, and Rishra.

Many plastic processing units (about 75%) are in the small-scale sector. Recycled plastics also form a significant part (about 30%) of total production.

Synthetic fibres (nylon, polyester, acrylic) are widely used in textiles due to their durability, washability, and resistance to shrinkage. Manufacturing units are located in places like Kota, Pimpri, Mumbai, Modinagar, Pune, Ujjain, Nagpur, Udhna, and Vadodara.

While plastics are integral to modern life, their non-biodegradable nature poses a significant environmental threat, leading to efforts to discourage their use in many parts of India.



Knowledge Based Industries

The Information Technology (IT) revolution has profoundly impacted India's economy, creating new avenues for growth and transformation.

The IT and IT-enabled services (ITES), including Business Process Outsourcing (BPO), have shown robust growth.

India's software industry has emerged as one of the fastest-growing sectors, surpassing electronic hardware production in some areas.

The government has promoted this sector by establishing numerous Software Technology Parks across the country.

Map of India showing the locations of some Software Technology Parks

India's software industry is recognized internationally for the quality of its products, with many Indian companies achieving international quality certifications.

A large number of multinational IT companies have set up software development or research and development centres in India.

A significant impact of this sector's growth has been the creation of a large number of employment opportunities.



Liberalisation, Privatisation, Globalisation (LPG) And Industrial Development In India

India's New Industrial Policy, announced in 1991, aimed to build on past gains, address weaknesses, boost productivity and employment, and enhance international competitiveness.

Key measures introduced under this policy framework included:

The policy had three main pillars:


Under the new policy, Foreign Direct Investment (FDI) was encouraged as a means to supplement domestic investment, bring technological upgrades, access global expertise, and optimize resource use.

FDI flows were liberalized, with many sectors open for automatic approval. However, industries were discouraged from locating very close to large cities for environmental reasons.

New sectors like mining, telecommunications, and infrastructure development (highway construction) were opened to private companies, including multinational corporations.

Despite these reforms and increased foreign collaborations, actual FDI received sometimes lagged behind approvals. Much of the investment went into sectors like domestic appliances, finance, services, electronics, and food products.

Globalisation policies aimed to increase domestic and international competition through market mechanisms and fostering dynamic relationships with foreign investors and technology suppliers. In the Indian context, this involved:



Industrial Regions In India

Industries in India are not evenly distributed; they tend to cluster in certain locations where favorable factors for industrial development exist.

Industrial clustering can be identified using various indicators, such as the number of industrial units, workforce employed, power consumption, total output, and value added by manufacturing.

India is home to several major and minor industrial regions and districts:

Map of India showing the locations of major and minor industrial regions and districts

Major Industrial Regions (8 identified):

Minor Industrial Regions (13 identified): Include areas like Ambala-Amritsar, Indore-Dewas-Ujjain, Jaipur-Ajmer, etc.

Industrial Districts (15 identified): Smaller concentrated areas like Kanpur, Hyderabad, Agra, Nagpur, etc.


Detailed notes on some major industrial regions:

Mumbai-Pune Industrial Region

Stretches from Mumbai-Thane to Pune and includes parts of Nashik and Solapur districts. Its development began with the cotton textile industry, favored by access to cotton from the hinterland and a humid climate. The opening of the Suez Canal boosted the importance of Mumbai port, facilitating imports/exports. Hydroelectric power from the Western Ghats supported industrial growth. Chemical industries developed alongside textiles. Discovery of Mumbai High oilfield and nuclear power plants further enhanced its appeal. Industries now include engineering, petroleum refining, petrochemicals, leather, synthetic goods, drugs, fertilizers, electronics, shipbuilding, software, and food processing. Important centres are Mumbai, Pune, Nashik, Solapur, etc.

Hugli Industrial Region

Located along the Hugli River in West Bengal, extending about 100 km. Its development is linked to the river port, connectivity to the interior via rail/roads, tea plantations, processing of indigo/jute, and proximity to coal/iron ore from the Damodar Valley/Chotanagpur. Availability of cheap labour from neighboring states and British capital investment (Kolkata being capital) were key factors. The first jute mill was established at Rishra (1855). Major concentration of jute industry is at Haora and Bhatapara. The region also has cotton textiles, paper, engineering, chemical, and petrochemical industries. However, its growth has slowed compared to other regions, partly due to the decline of the jute industry. Important centres include Kolkata, Haora, Haldia, etc.

Bengaluru-Chennai Industrial Region

Experienced rapid growth post-Independence, spreading from core districts like Bengaluru, Salem, and Madurai across Tamil Nadu. Development is supported by hydropower (Pykara plant, 1932) as it's away from coalfields. Cotton textiles were early industries, followed by heavy engineering (aircraft - HAL, machine tools, telephones - HTL, Bharat Electronics in Bengaluru). Other industries include textiles, rail wagons, diesel engines, rubber goods, chemicals, etc. Recent additions include Chennai petroleum refinery, Salem iron and steel plant, and fertilizer plants.

Gujarat Industrial Region

Centered between Ahmedabad and Vadodara, extending south to Valsad/Surat and west to Jamnagar. Its growth began with the cotton textile industry in the 1860s, becoming a major textile region. Proximity to cotton growing areas and markets was an advantage. Discovery of oilfields led to petrochemical industries (Ankleshwar, Vadodara, Jamnagar). Kandla port and Koyali refinery further facilitated growth. Industry structure is diversified, including textiles, chemicals, motor/tractor, engineering, pharmaceuticals, dyes, sugar, dairy, and food processing. Jamnagar hosts the largest petroleum refinery. Important centres are Ahmedabad, Vadodara, Surat, Jamnagar, etc.

Chotanagpur Region

Covers Jharkhand, northern Odisha, and western West Bengal, known for heavy metallurgical industries. Its development is based on vast reserves of coal (Damodar Valley) and metallic/non-metallic minerals. Proximity of raw materials facilitated large iron and steel plants (Jamshedpur, Burnpur-Kulti, Durgapur, Bokaro, Rourkela). Power is supplied by thermal and hydroelectric plants (Damodar Valley). Densely populated surroundings provide cheap labour, and the Hugli region offers a large market. Other heavy industries include engineering, machine tools, fertilizers, cement, paper, locomotives, and heavy electricals. Important centres are Ranchi, Dhanbad, Jamshedpur, Bokaro, Rourkela, Durgapur, Asansol, etc.

Vishakhapatnam-Guntur Region

Extends from Vishakhapatnam to Kurnool and Prakasam districts in Andhra Pradesh. Development is linked to Vishakhapatnam and Machilipatnam ports, developed agriculture, and mineral reserves in the hinterland. Energy comes from Godavari basin coalfields. Ship building started at Vishakhapatnam (1941). A petroleum refinery based on imported oil supports petrochemical growth. Principal industries include sugar, textile, jute, paper, fertilizer, cement, aluminium, and light engineering. Vishakhapatnam, Vijayawada, Guntur, and Kurnool are important centres.

Gurugram-Delhi-Meerut Region

This region has seen rapid industrial growth recently. Located away from traditional mineral and power resources, its industries are mostly light and market-oriented. Major industries are electronics, light engineering, and electrical goods. Others include textiles (cotton, woollen, synthetic), hosiery, sugar, cement, machine tools, tractors, cycles, agricultural implements, chemicals, and vanaspati. Software industry is a recent addition. The nearby Agra-Mathura area specializes in glass and leather, with Mathura developing a petrochemical complex around its refinery. Important centres are Gurugram, Delhi, Faridabad, Meerut, Agra, and Mathura.

Kollam-Thiruvananthapuram Region

Spread across districts in Kerala (Thiruvananthapuram, Kollam, Alwaye, Ernakulam, Alappuzha). Industrial base is provided by plantation agriculture and hydropower. Being far from major mineral belts, the region is dominated by agricultural product processing and market-oriented light industries. Important industries include cotton textile, sugar, rubber, matchbox, glass, chemical fertilizer, and fish-based industries. Food processing, paper, coir products, aluminium, and cement are also significant. The petroleum refinery at Kochchi has spurred new industries. Important centres are Kollam, Thiruvananthapuram, Aluva, Kochchi, Alappuzha, and Punalur.



Exercises

This section contains questions and exercises to help students review and assess their understanding of manufacturing industries in India, including their types, location factors, major industries, and industrial regions.

Choose The Right Answers Of The Following From The Given Options

Multiple-choice questions testing recall of facts, definitions, and examples related to manufacturing industries in India.

Answer The Following Questions In About 30 Words.

Short answer questions requiring brief explanations of specific terms, characteristics of industries, or impacts of policy/technology.

Answer The Following Questions In About 150 Words.

Longer answer questions prompting more detailed discussions on the impact of the Swadeshi movement on cotton textiles and the effects of liberalization, privatization, and globalization on India's industrial development.