Classification of Industries – UPSC

• Industries belong to secondary activity. Manufacturing turns raw materials into products of greater value to people.
• The term covers economic activity concerned with producing goods, extracting minerals and providing services.
• Industry classification, or industry taxonomy, is an economic taxonomy that groups companies, organisations and traders by similar production processes, similar products or similar behaviour in financial markets.

Classification of Industries

• Industries can be classified in several ways, by size, raw material, ownership and function. The chart gives an overview, and two further tests are added below it: pollution and freedom of location.

• The classes overlap, because each answers a different question about the same plant.
  • Iron and steel is at once large, heavy, mineral-based, basic and capital-intensive, and it can be public or private.
  • Bidi-making is small in scale, forest-based and labour-intensive, and is often done at home as a cottage activity.
  • A cooperative sugar mill is agro-based by material, cooperative by ownership and a consumer goods industry by function.

On the Basis of Strength of Labour

• Large scale: each unit employs many workers. Cotton and jute textile industries are the usual examples.
• Medium scale: units employ neither very many nor very few workers, as in the cycle, radio and television industries.
• Small scale: owned and run by individuals, with a small number of workers.
• Official definition today: Indian law sorts enterprises by investment and turnover, not by workers. The limits below came into force on 1 April 2025.

• The older limits were lower: ₹1 crore and ₹5 crore for micro, ₹10 crore and ₹50 crore for small, and ₹50 crore and ₹250 crore for medium.
• The small sector’s own policy and problems sit with cottage and small-scale industries.

On the Basis of Source of Raw Material

• Agro-based: draw raw material from agriculture, as with cotton textiles, jute textiles, sugar and vegetable oil.
• Mineral-based: rely mainly on minerals, as with iron and steel, aluminium and cement.
• Pastoral-based: depend on animals, for hides, skins, bones, horns, shoes and dairy goods.
• Forest-based: use forest products, as in paper and cardboard, lac, rayon, resin, leather tanning, leaf utensils and baskets.

On the Basis of Ownership

• Since planning began in 1951, Indian industries have commonly been grouped by who owns them.

• Private sector: owned by individuals or firms, and the main field of new investment since 1991.
• Public sector: owned by the State and its agencies, and built up after 1956 to give the economy a heavy-industry base.
• Joint sector: owned jointly by private firms and the State or its agencies, combining public purpose with private management. Oil India began in 1959 as a venture of Burmah Oil and the government, and became wholly government owned in 1981.
• Cooperative sector: owned and run together by a group of people, generally the producers of the industry’s raw material. A sugar mill run by its cane farmers is the usual case.
• Multinational corporation (MNC): it has facilities and other assets in at least one country other than its home country.
  • It usually has offices or factories in several countries and a centralised head office that coordinates global management.
  • Such firms are also called international, stateless or transnational corporate organisations, and many have budgets larger than those of small countries.
  • Their role in India is set out under multinational companies.
• Public sector undertakings have 51% or more of their paid-up capital with the Centre or States. Their growth and problems appear with industrial complexes.

On the Basis of Raw Material and Finished Goods

• Heavy: use heavy, bulky raw materials and give heavy products. Iron and steel is the standard example.
• Light: use light raw materials and give light finished goods, such as electric fans and sewing machines.
• The difference shapes location. Heavy industries stay near materials, water and rail or port links, and need large capital. Light industries can go nearer markets and labour, and they suit smaller towns.

Miscellaneous Industries and Function

• Village industries: located in villages and serving rural needs, with local machinery, as in oil extraction, grain grinding and farm implements.
• Cottage industries: set up by artisans in their own homes, working with wood, cane, brass or stone. Handloom, khadi and leatherwork fall here.
• Consumer goods industries: turn raw or primary materials into goods for direct use, such as textiles, bakery goods and sugar.
• Ancillary industries: make parts and components for big industries that build trucks, buses, railway engines and tractors.
• Basic industries: many other industries depend on them, as with iron and steel and power generation.
• Capital-intensive industries: need huge investment, as with iron and steel, cement and aluminium.
• Labour-intensive industries: need a huge labour force, and labour matters more than capital. Shoe-making and bidi-making are examples.
• Other common labels:
  • Capital goods industries make machinery for other industries, and intermediate goods industries make inputs such as chemicals, yarn and steel products.
  • Sunrise industries are new and fast-growing fields such as electronics, data centres and renewable equipment.
  • Sunset industries are older lines in decline, as jute manufacturing has been.
• Official statistics use three further groupings:
  • Use-based groups in the Index of Industrial Production: primary, capital, intermediate, infrastructure and construction goods, and consumer durables and non-durables.
  • Core sector industries: coal, crude oil, natural gas, refinery products, fertilizers, steel, cement and electricity.
  • National Industrial Classification (NIC-2008): used by the Annual Survey of Industries. In 2024-25, basic metals led in gross value added and food products in factories and jobs.

Categorisation by Pollution Index

• The Ministry of Environment, Forest and Climate Change (MoEFCC) set criteria that sort industrial sectors by a Pollution Index (PI).
  • The index combines air emissions, water effluents, hazardous wastes generated and resource use.
• Reference standards: the Water (Prevention and Control of Pollution) Cess (Amendment) Act, 2003; standards under the Environment (Protection) Act, 1986; and the Doon Valley Notification, 1989.
• The PI of a sector is a number from 0 to 100, and a higher value means a heavier pollution load.

• The Central Pollution Control Board’s January 2025 revision covers 419 sectors and sub-sectors: Red 125, Orange 137, Green 94, White 54 and Blue 9.
  • Blue sectors manage waste from households and earn two extra years of consent validity.
• White category units need no Consent to Operate. An intimation to the State Pollution Control Board (SPCB) or Pollution Control Committee (PCC) is enough.
• Red category units are not normally allowed in ecologically fragile or protected areas.

Footloose Industry

• A footloose industry can be placed at any location without being tied to factors of production such as resources, land, labour or capital.
• Such industries often have spatially fixed costs, so product cost barely changes with the place of assembly.
• Examples: diamonds, computer chips and mobile phone manufacturing. These are generally low-polluting.
• Non-footloose industries need raw material within a time limit. Sugar, jute and tea are examples.
• The term also covers processing that is neither weight-gaining nor weight-losing, despite real transport costs.
  • Honey is an example. Raw honey and wax weigh the same as the finished product, so transport cost is the same whether processing happens near the source or near the buyer.
• Watches and electronics are the classic cases of light inputs from many sources, none of which fixes the site, and they are discussed further with locational factors.
• Key characteristics:
  • Small plant size compared with heavy industries.
  • Little dependence on a specific raw material, especially weight-losing ones. Inputs are small, light and easy to move.
  • Skilled workers, since the process is advanced and needs high precision.
  • Light, low-volume, high-value output, easily transported to markets.
  • Environment-friendly in location terms, with little local smoke or heavy waste. The claim of a negligible carbon footprint has limits, since chip fabrication and data centres use much power and water.
  • A peaceful, cost-friendly location that attracts human capital.
  • Good connectivity by road, rail, telecommunication and air, to move skilled workers and high-value goods quickly.

• Footloose industry and backward regions:
  • Potential: with no tie to raw materials, such units could in principle go to areas short of minerals, adding jobs without heavy transport costs.
  • Limits: they follow skills, connectivity and clean surroundings, so they usually favour Bengaluru, Noida, Pune and Chennai.
  • What helps: tax packages, industrial estates and training, as in the hill-State units at Baddi and Pantnagar.