Industrial regions and product-specialised clusters

Detail

Key ideas first

• Industrial region: a large area where many factories of different kinds are grouped together. They share raw material, power, transport, workers and markets.
• Agglomeration economies: the cost savings and other benefits firms get when they set up close to each other. Examples are shared suppliers, skilled workers, repair shops, banks and buyers. (Class 12, Secondary Activities)
• Cluster / product-specialised town: a town or district where hundreds of small units make one kind of product. Agglomeration economies work here at a small scale.
• Footloose industry: an industry that is not tied to a raw material or power source. It can locate almost anywhere, so it usually picks a big market, a skilled workforce and good transport.
• Two starting points:
• 1854: the first cotton mill opened in Mumbai. This started the market-and-port-based pattern.

• 1907: TISCO (Tata Iron and Steel Company) was set up at Jamshedpur. This started the raw-material-based pattern.

• Status in the syllabus: the current NCERT has dropped the eight-region scheme, which comes from earlier Class 12 editions of India: People and Economy. UPSC still asks about it.

The eight industrial regions at a glance

Region	States	Original base	Present-day industries	Location type
Mumbai-Pune	Maharashtra	Cotton mills, port, Bombay High oil, Western Ghats hydel	Engineering, cars, petrochemicals, pharma, IT	Market + port
Hugli	West Bengal	Jute, river port, Chota Nagpur coal and iron	Jute, engineering, paper (in decline)	Port + raw material
Bengaluru-Tamil Nadu	Karnataka, Tamil Nadu	Cotton, Pykara hydel, public-sector engineering	Cars, electronics, software	Power + skilled labour
Gujarat	Gujarat	Cotton textiles	Petrochemicals, chemicals, fertilisers, diamonds	Raw material (oil, gas) + port
Chota Nagpur	Jharkhand, north Odisha, western West Bengal	Coal, iron ore	Iron and steel, heavy engineering	Raw material
Visakhapatnam-Guntur	Andhra Pradesh	Port	Shipbuilding, steel, refinery, fertilisers	Port + gas
Gurugram-Delhi-Meerut	Haryana, Delhi, Uttar Pradesh	Huge market (no minerals)	Cars, electronics, software	Market (footloose)
Kollam-Thiruvananthapuram	Kerala	Farm, plantation and sea products	Coir, cashew, rubber, fish processing, software	Agro + market

1. Mumbai-Pune industrial region

• Extent: Mumbai to Pune, plus Thane, Nashik and Pimpri-Chinchwad (Pune's industrial twin town).
• How it grew:
• Cotton came first. The first mill opened in 1854. Raw cotton came from the black soil (regur) of the Deccan, and Mumbai port handled imports of machinery and exports of cloth.
• Power came next. Hydel (hydroelectric power: electricity made from falling water) from dams in the Western Ghats gave cheap power.

• Oil was the third step. Oil from Bombay High, an offshore field in the Arabian Sea, fed refineries and petrochemicals (chemicals made from crude oil and natural gas).

• Today: engineering, cars, petrochemicals, pharmaceuticals and IT.

• Why it matters: this is a market-and-port region. Once the first mills were there, they drew in banks, traders and skilled workers, and those pulled in still more industry. This is agglomeration at work.

2. Hugli industrial region

• Extent: a narrow belt along both banks of the Hugli river (a distributary of the Ganga) in West Bengal, from Bansberia in the north to Birlanagar in the south, centred on Kolkata-Howrah.
• What helped it grow:
• Jute from the Ganga-Brahmaputra delta was cheap and close at hand.
• The river port at Kolkata made import and export easy.
• Coal and iron came from the nearby Chota Nagpur plateau.

• The river supplied water, and cheap labour came from Bihar, Odisha and eastern UP.

• Why it declined:

• Partition (1947): most of the jute-growing land went to East Pakistan (now Bangladesh), while the mills stayed in India, so the mills lost their raw material.
• Labour unrest and power shortages came later.

• Other problems were silting of the Hugli port and old machines.

• Exam point: this is the classic case of an industrial region that declined.

3. Bengaluru-Tamil Nadu industrial region

• Extent: a chain of cities: Bengaluru – Hosur – Salem – Coimbatore – Chennai – Madurai.
• How it grew:
• Cotton came first. Coimbatore became the "Manchester of South India" because it had a moist climate, black and red soils that grow cotton, and cheap labour.
• Early hydel came next. The Pykara project in the Nilgiri hills gave cheap power. This made up for the lack of coal in the south.

• Public-sector engineering units were set up in Bengaluru (aircraft, machine tools, telephones, electronics). They built up a large pool of skilled workers.

• Today: cars (Chennai and Hosur), electronics and software (Bengaluru).

4. Gujarat industrial region

• Extent: Ahmedabad – Vadodara in the north, running south to Valsad and Surat.
• How it grew:
• Textiles came first. Cotton mills grew in Ahmedabad, helped by cotton grown on nearby black soil.
• Oil and gas changed it. The Cambay (Khambhat) basin supplied oil and gas, and this brought in petrochemicals, chemicals and fertilisers.

• Ports carry the region's trade: Kandla (now Deendayal Port) and Mundra on the Gulf of Kachchh.

• Surat is the centre for diamonds and synthetic (man-made fibre) cloth.

5. Chota Nagpur industrial region

• Extent: Jharkhand, north Odisha and western West Bengal.
• Why steel is here:
• Coal: the Damodar valley coalfields (Jharia, Bokaro, Raniganj).
• Iron ore: the Singhbhum (Jharkhand) and north Odisha belt (Mayurbhanj, Keonjhar).
• Power and water: the DVC (Damodar Valley Corporation, India's first multipurpose river valley project, set up in 1948 on the TVA model of the USA) gives hydel and thermal power.

• Result: iron and steel is a heavy, weight-losing industry (its raw materials lose a lot of weight during processing). So the plants are built where coal and ore are close together.

• Steel centres:

• Jamshedpur: TISCO, 1907. It stands where the Subarnarekha and Kharkai rivers meet.
• Bokaro (Jharkhand).
• Durgapur (West Bengal).

• Burnpur (West Bengal).

• Other industries: heavy engineering, machine tools, fertilisers, cement, paper and locomotives.

6. Visakhapatnam-Guntur industrial region

• Extent: coastal Andhra Pradesh, from Visakhapatnam south to Guntur.
• Base: the deep natural harbour at Visakhapatnam on the Bay of Bengal.
• Industries:
• shipbuilding
• a coastal steel plant, which runs on imported coal and coking coal brought in through the port
• a petroleum refinery

• fertilisers

• Gas: natural gas from the Krishna-Godavari (KG) basin feeds the fertiliser and power plants.

7. Gurugram-Delhi-Meerut industrial region

• Extent: Gurugram (Haryana), Delhi and Meerut (UP), along with nearby towns such as Faridabad, Ghaziabad and Noida.
• The puzzle: the region is far from minerals and power sources, yet it grew fast.
• Why:
• The National Capital Region is a huge market.
• It has skilled workers.

• It has good roads, rail and air links.

• Result: light, footloose industry, such as cars (Gurugram, Manesar), electronics and software.

• Exam point: this is the textbook example of market-oriented location.

8. Kollam-Thiruvananthapuram industrial region

• Extent: southern Kerala, along the coast from Kollam to Thiruvananthapuram.
• Base: local farm, plantation and sea products. There are few minerals.
• Coir (fibre from coconut husk)
• Cashew processing
• Rubber goods
• Fish processing

• Software (Thiruvananthapuram)

• Type: agro-based (using farm raw material) and market-based.

Product-specialised industrial towns

Town	State	Product
Tiruppur	Tamil Nadu	Knitwear (cotton hosiery, T-shirts)
Surat	Gujarat	Diamond cutting and polishing; synthetic cloth
Moradabad	Uttar Pradesh	Brassware
Firozabad	Uttar Pradesh	Glass bangles and glassware
Aligarh	Uttar Pradesh	Locks
Sivakasi	Tamil Nadu	Fireworks, matches, printing
Bhadohi	Uttar Pradesh	Hand-knotted carpets
Ludhiana	Punjab	Hosiery (woollen knitwear)
Jalandhar	Punjab	Sports goods
Kanpur	Uttar Pradesh	Leather
Rajkot	Gujarat	Engineering (diesel engines, machine parts)

• How a cluster works:
• It starts with an early skill, such as a craft community, or with a local raw material.
• Suppliers, traders, dyers and repair shops gather around it.

• Costs fall for every firm, and the town becomes known for that one product.

• Tiruppur:

• Its exports were about ₹30,000 crore in 2021-22. It is India's leading centre for hosiery, knitted garments, casual wear and sportswear, and a traditional cotton-ginning centre [8].
• Its exports grew at a compound annual growth rate of 22.87% over 37 years [8].

• The Government plans to build 75 textile hubs like Tiruppur (2022) [8].

• Moradabad is called "Peetal Nagari", the brass city of India [9].

Surat diamond industry

• Fact: Surat cuts and polishes most of the world's diamonds.
• Why Surat: the skill was spread by the Palanpuri Jain community (diamond traders) and the Kathiawadi community (cutters from Saurashtra). It is a cluster built on a skilled community, not on a raw material, because no diamonds are mined there.
• Jobs: the industry employs more than 8 lakh people. The Bourse was expected to add about 1.5 lakh new jobs (2023) [3].
• Surat Diamond Bourse:
• The Prime Minister inaugurated it on 17 December 2023 [2].
• It is among the world's largest office buildings. The Government calls it the world's largest and most modern centre for the international diamond and jewellery trade, covering both rough and polished diamonds [2].
• Facilities include a customs clearance house for imports and exports, a jewellery mall, international banking and safe vaults [2].
• It is a green building (designed to save energy and water) [3].

One District One Product (ODOP)

• What it is: a scheme that picks one distinctive product for each district. That product then gets help with branding, credit and exports.

• Examples: Moradabad brass, Kannauj perfume (attar) and Banaras silk.

• Origin: it began as an Uttar Pradesh state scheme in 2018. It was later taken national [6][7].

• Who runs it: DPIIT (Department for Promotion of Industry and Internal Trade) [4].

• It has been merged in operation with the Districts as Export Hubs (DEH) scheme of the DGFT (Directorate General of Foreign Trade), Department of Commerce [5].

• Scale:

• As of December 2025, it covered over 770 districts [7].

• DPIIT reports 1,244 products in 773 districts (2026) [4].

• Link to GI tags:

• A GI tag (Geographical Indication: a legal label showing that a product comes from a particular place and owes its quality to that place) is held by many ODOP products.

• Examples include Banarasi brocade and Firozabad glassware. Uttar Pradesh alone has 75 GI-tagged products, 34 of them from the Kashi region [7].

• Sales outlets: PM Ekta (Unity) Malls are planned as shops and display centres for ODOP, GI and handicraft products [6][7].

• Why it matters for geography: ODOP officially recognises the small-scale agglomeration seen in product towns.

Prelims Hooks

• Hugli region runs from Bansberia to Birlanagar. It declined mainly because jute-growing areas went to East Pakistan at Partition.
• The Pykara hydel project (Nilgiris) powered the early Bengaluru-Tamil Nadu region, which had no coal.
• The Gurugram-Delhi-Meerut region has no mineral base. It is market-based and footloose. This is a common "which region is NOT raw-material-based" trap.
• Chota Nagpur steel centres are Jamshedpur, Bokaro (Jharkhand), Durgapur and Burnpur (West Bengal). Its power comes from the DVC.
• The Visakhapatnam-Guntur region uses KG-basin gas, and Visakhapatnam has a coastal steel plant.
• Kollam-Thiruvananthapuram is the agro-based region: coir, cashew, rubber and fish processing.
• Town–product pairs:
• Aligarh – locks
• Firozabad – glass bangles
• Moradabad – brass ("Peetal Nagari")
• Sivakasi – fireworks and printing
• Bhadohi – carpets
• Jalandhar – sports goods

• Tiruppur – knitwear

• Surat Diamond Bourse was inaugurated on 17 December 2023 [2].

• ODOP began in Uttar Pradesh in 2018. Nationally it is run by DPIIT and merged with DGFT's Districts as Export Hubs [4][5].

Mains Points

• Change in location factors over time:
• Early regions grew on raw material, power or a port: Chota Nagpur on coal and ore, Hugli on jute and a river port, Mumbai on cotton and a port.
• Newer growth goes to market-and-skill regions: Gurugram-NCR, Bengaluru and Pune.

• Reason: today's industries such as cars, electronics and software are light and footloose. Better transport has also cut the pull of raw materials.

• Decline of an industrial region (the Hugli case):

• Losing its raw material at Partition broke the supply chain.
• Labour unrest and power shortages then pushed capital away.

• Lesson: regions that depend on one industry need to diversify into new ones.

• Clusters as a policy tool:

• Product towns show agglomeration economies at small scale, and they create a lot of jobs: about 8 lakh in Surat diamonds [3].
• Two schemes now use clusters directly: ODOP-DEH, with 1,244 products in 773 districts [4][5], and Tiruppur-style textile hubs [8].

• They build on GI tags to spread industry beyond the big metros. (GS-III: inclusive growth, MSMEs)

• Problems in clusters:

• Pollution: Kanpur tanneries on the Ganga, Firozabad glass furnaces.
• Risky work: Sivakasi fireworks.
• Old technology and dependence on export markets.
• These problems call for cleaner technology and support to upgrade MSMEs.