MANUFACTURING INDUSTRIES
What is the function of an industry?
The production of goods is the main function of any industry.
What are the types off industry?
1. Primary 2. Secondary 3. Tertiary 4. Quaternary
Which is the state that has maximum number of factories in
India?
Tamil Nadu is the state in India that has the maximum number of factories.
Importance of Manufacturing
The manufacturing sector is considered the backbone of development due to the
following reasons:
1. Manufacturing industries help in modernising agriculture as it provides jobs in
secondary and tertiary sectors.
2. It helps in the eradication of unemployment and poverty.
3. Export of manufactured goods expands trade and commerce, and brings in
much needed foreign exchange.
4. It helps in prospering the country by giving a boost to the economy.
Contribution of Industry to National Economy
The trend of growth rate in manufacturing over the last decade has been around 7
per cent per annum.
Industrial Location
Industrial locations are influenced by the availability of:
Raw material
Labour
Capital
Power
Market
Government policies
Manufacturing activity tends to locate at the most appropriate place where all the
factors of industrial location are either available or can be arranged at a lower cost.
The figure below shows the industry market linkage.
Agro-based Industries
Cotton, jute, silk, woollen textiles, sugar and edible oil, etc. industries are based on
agricultural raw materials. Let’s know about each of them, one by one.
Textile Industry
It is the only industry in India, which is self-reliant and complete in the value chain
i.e., from raw material to the highest value added products. It contributes to
industrial production, employment generation and foreign exchange earnings.
Cotton Textiles
This industry has close links with agriculture and provides a living to farmers, cotton
boll pluckers and workers engaged in ginning, spinning, weaving, dyeing, designing,
packaging, tailoring and sewing. It supports many other industries, such as,
chemicals and dyes, packaging materials and engineering works.
Jute Textiles
India is the largest producer of raw jute and jute goods. Most of the mills are located
in West Bengal, mainly along the banks of the Hugli river.
Sugar Industry
India stands second as a world producer of sugar but occupies the first place in the
production of Gur and Khandsari. This industry is seasonal in nature.
Mineral-based Industries
Industries that use minerals and metals as raw materials are called mineral-based
industries. Let’s discuss some industries that fall under this category.
Iron and Steel Industry
Iron and steel is the basic industry as all the other industries – heavy, medium and
light, depend on it for their machinery. lt is considered as a heavy industry because
all the raw materials, as well as finished goods, are heavy and bulky entailing heavy
transportation costs.
India is an important iron and steel producing country in the world yet, we are not
able to perform to our full potential largely due to:
High costs and limited availability of coking coal
Lower productivity of labour
Irregular supply of energy
Poor infrastructure.
Aluminium Smelting
Aluminium Smelting is the second most important metallurgical industry in India. It is
used to manufacture aircraft, utensils and wires. Bauxite is the raw material used in
the smelters.
Aluminium Smelting has gained popularity as a substitute for steel, copper, zinc and
lead in a number of industries. It exhibits the following properties:
Light in weight
Resistant to corrosion
A good conductor of heat
Malleable
Becomes strong when it is mixed with other metals
Chemical Industries
The Chemical industry comprises both large and small scale manufacturing units.
Rapid
growth has been recorded in both inorganic and organic sectors.
Inorganic chemicals include sulphuric acid nitric acid, alkalies, soda ash and caustic
soda.
Organic chemicals include petrochemicals, which are used for manufacturing
synthetic fibers, synthetic rubber, plastics, dye-stuffs, drugs and pharmaceuticals.
Fertilizer Industry
The fertilizer industries are centred around the production of nitrogenous fertilizers
(mainly urea), phosphatic fertilizers and ammonium phosphate (DAP) and complex
fertilizers which have a combination of nitrogen (N), phosphate (P), and potash (K).
Gujarat, Tamil Nadu, Uttar Pradesh, Punjab and Kerala contribute towards half of the
fertilizer production.
Cement Industry
Cement is essential for construction activity such as building houses, factories,
bridges, roads, airports, dams and for other commercial establishments. This
industry requires bulky and heavy raw materials like limestone, silica and gypsum.
Automobile Industry
This industry deals with the manufacturing of trucks, buses, cars, motorcycles,
scooters, three-wheelers and multi-utility vehicles. These industries are located
around Delhi, Gurugram, Mumbai, Pune, Chennai, Kolkata, Lucknow, Indore,
Hyderabad, Jamshedpur and Bengaluru.
Information Technology and Electronics Industry
The electronics industry covers a wide range of products from transistor sets to
television, telephones, cellular telecom, telephone exchange, radars, computers and
many other equipment required by the telecommunication industry. This industry
has generated employment in India. Bengaluru is known as the electronic capital of
India.
Industrial Pollution and Environmental Degradation
Industries are responsible for 4 types of pollution:
1. Air
2. Water
3. Land
4. Noise
Air pollution is caused by the presence of a high proportion of undesirable gases,
such as sulphur dioxide and carbon monoxide. Smoke is emitted by chemical and
paper factories, brick kilns, refineries and smelting plants, and burning of fossil fuels
leads to air pollution. It adversely affects human health, animals, plants, buildings
and the atmosphere as a whole.
Water pollution is caused by organic and inorganic industrial wastes and effluents
discharged into rivers. The industries which are mainly responsible for water
pollution are paper, pulp, chemical, textile and dyeing, petroleum refineries,
tanneries and electroplating industries.
Thermal pollution of water occurs when hot water from factories and thermal
plants is drained into rivers and ponds before cooling.
Noise pollution is the propagation of noise with harmful impact on the activity of
human or animal life. It results in irritation, anger, cause hearing impairment,
increased heart rate and blood pressure.
Control of Environmental Degradation
Here are some ways through which industrial pollution can be reduced:
1. Minimising the use of water by reusing and recycling it.
2. Harvesting rainwater to meet water requirements.
3. Treating hot water and effluents before releasing them in rivers and ponds.
4. Particulate matter in the air can be reduced by fitting smoke stacks to
factories with electrostatic precipitators, fabric filters, scrubbers and inertial
separators.
5. Smoke can be reduced by using oil or gas instead of coal in factories.
6. Machinery can be redesigned to increase energy efficiency and reduce noise.
