India: People and Economy

India's population was 1,210 million as per the 2011 Census, making it the world's second most populous country after China. This chapter covers the spatial distribution, density, four phases of growth since 1901, and composition of India's population by residence, language, religion, and occupation.

• 1India's 2011 population was 1,210 million — larger than the combined population of North America, South America, and Australia.
• 2Uttar Pradesh is the most populous state; the top ten states (including Maharashtra, Bihar, West Bengal, AP, Tamil Nadu, MP, Rajasthan, Karnataka, Gujarat) hold ~76% of India's total population.
• 3Population density in 2011 is 382 persons/sq km, up from 117 in 1951; Delhi has the highest (11,297) and Arunachal Pradesh the lowest (17).
• 4Four phases of growth: stagnant 1901–1921 (even negative in 1911–21), steady 1921–1951, population explosion 1951–1981 (avg 2.2% annual), and slowing post-1981 driven by declining birth rates and rising female literacy.
• 5Kerala recorded the lowest decadal growth rate (9.4%) in India during 1991–2001.

Chapter 2 of Class 12 Geography Part 2 (India: People and Economy) covers human settlements in India — the four types of rural settlements, the Census definition of urban areas, the historical evolution of Indian towns, urbanisation trends from 1901 to 2011, and the functional classification of cities and towns.

• 1Rural settlements in India have four types: clustered/nucleated (fertile alluvial plains, northeastern states, Bundelkhand, Rajasthan), semi-clustered (Gujarat plain, parts of Rajasthan), hamleted (middle/lower Ganga plain, Chhattisgarh, lower Himalayan valleys), and dispersed (Meghalaya, Uttarakhand, Himachal Pradesh, Kerala).
• 2Three factors determine the type of rural settlement: physical (terrain, altitude, climate, water availability), cultural and ethnic (social structure, caste, religion), and security (defence against thefts and robberies).
• 3The 1991 Census defines an urban area as having a municipal body, minimum population of 5,000 persons, at least 75% male workers in non-agricultural pursuits, and population density of at least 400 persons per sq km.
• 4Indian towns are classified by historical evolution into ancient towns (2,000+ years — Varanasi, Prayagraj, Patna, Madurai), about 100 medieval towns (fort towns like Delhi, Hyderabad, Agra, Jaipur), and modern towns (British-developed and post-independence — Mumbai, Chennai, Kolkata, Chandigarh, Jamshedpur).
• 5Urbanisation in India was 10.84% in 1901 and rose to 31.16% in 2011 — an eleven-fold increase in urban population over the 20th century, though the growth rate slowed in the last two decades.

This chapter covers India's nine land-use categories and their changes between 1950–51 and 2019–20, the three cropping seasons, major crops and their distribution, agricultural development since Independence, and the key problems facing Indian agriculture.

• 1Nine land-use categories are maintained in land revenue records; the Survey of India measures geographical area, which differs from the reporting area used in land-use statistics.
• 2Between 1950–51 and 2019–20, net area sown rose from 41.7% to 45.6% of reporting area, while total cultivable land fell marginally from 59.5% to 57.7% of reporting area.
• 3Three cropping seasons exist in northern India—kharif (June–September), rabi (October–March), and zaid (April–June); southern India can grow tropical crops in any season provided soil moisture is available.
• 4Dryland farming is practised where annual rainfall is less than 75 cm; crops include ragi, bajra, moong, gram, and guar with soil moisture conservation measures.
• 5Foodgrains occupy about two-thirds of total cropped area; cereals cover about 54 per cent; India ranks third in world cereal production after China and the USA.

India holds about 4% of the world's water resources but supports over 17% of its population; total utilisable water is only 1,122 cubic km per year, with agriculture consuming 89% of surface water and 92% of groundwater.

• 1India holds 4% of the world's water resources but over 17% of the world's population; total utilisable water is only 1,122 cubic km out of 1,869 cubic km available from surface water and replenishable groundwater.
• 2There are about 10,360 rivers and tributaries in India; only 690 cubic km (32%) of available surface water can be utilised due to topographical and hydrological constraints.
• 3The Ganga, Brahmaputra, and Barak basins cover only about one-third of the country's area yet account for 60% of its total surface water resources.
• 4Agriculture is the dominant water user — 89% of surface water and 92% of groundwater — driven by irrigation needs; industry uses just 2% of surface water and 5% of groundwater.
• 5Over-extraction in Punjab, Haryana, Rajasthan, and Tamil Nadu has caused groundwater table decline, increased fluoride in Rajasthan and Maharashtra, and increased arsenic in parts of West Bengal and Bihar.

Chapter 5 of India: People and Economy covers India's mineral resources (ferrous, non-ferrous, non-metallic) and energy resources (conventional fossil fuels, nuclear energy, and non-conventional sources like solar, wind, and geothermal), along with their spatial distribution across three major mineral belts.

• 1Minerals are classified into metallic (ferrous and non-ferrous) and non-metallic; all are exhaustible and unevenly distributed with an inverse relationship between quality and quantity.
• 2Three major mineral belts: North-Eastern Plateau (iron ore, coal, manganese, bauxite, mica), South-Western Plateau (iron ore, manganese, bauxite; lacks coal except Neyveli lignite), and North-Western Region (copper, zinc, building stones, gypsum, petroleum in Gujarat).
• 3India holds the largest iron ore reserve in Asia; about 95% of reserves are in Odisha, Jharkhand, Chhattisgarh, Karnataka, Goa, Telangana, Andhra Pradesh, and Tamil Nadu.
• 4About 80% of India's coal is bituminous and non-coking grade; the Damodar Valley fields (Jharia, Raniganj, Bokaro) are the most important, with Jharia being the largest coal field.
• 5Petroleum: Digboi (Assam) was the only producing region before ONGC was set up in 1956; Mumbai High was discovered in 1973 with production starting in 1976; new reserves found in Krishna-Godavari and Kaveri basins.

This chapter covers India's two approaches to planning—sectoral and regional—alongside target area programmes such as the Drought Prone Area Programme and Hill Area Development Programme, the Brundtland Report's 1987 definition of sustainable development, and two case studies: the Integrated Tribal Development Project in Bharmaur (Himachal Pradesh) and the Indira Gandhi Canal Command Area in Rajasthan.

• 1Two approaches to planning: sectoral planning (development of economy sectors like agriculture, irrigation, manufacturing) and regional planning (area-specific approach to reduce spatial imbalances in development)
• 2NITI Aayog replaced the Planning Commission on 1 January 2015; its objective is to involve states in economic policy making and provide strategic and technical advice to Central and State governments
• 3Target area programmes include Command Area Development Programme, Drought Prone Area Programme (started in Fourth Five Year Plan), Desert Development Programme, and Hill Area Development Programme (started in Fifth Five Year Plan covering 15 districts)
• 4Target group programmes include Small Farmers Development Agency (SFDA) and Marginal Farmers Development Agency (MFDA); the 8th Five Year Plan added special area programmes for hill areas, north-eastern states, tribal areas, and backward areas
• 5Sustainable development defined by the 1987 Brundtland Report ('Our Common Future') as 'development that meets the needs of the present without compromising the ability of future generations to meet their own needs'; triggered by books such as 'The Population Bomb' (Ehrlich, 1968) and 'The Limits to Growth' (Meadows et al., 1972)

Class 12 Geography Chapter 7 (India: People and Economy) covers the major modes of transport in India — roads, railways, waterways, air, and pipelines — along with the development of personal and mass communication systems. It explains how these networks connect people, goods, and ideas across the country.

• 1India has one of the second largest road networks at ~62.16 lakh km; National Highways (1,36,440 km in 2020) carry 40% of road traffic while forming only 2% of total road length.
• 2NHAI was operationalised in 1995 and oversees major projects: Golden Quadrilateral (5,846 km, Delhi-Mumbai-Chennai-Kolkata), North-South Corridor (4,076 km, Srinagar–Kanniyakumari), and East-West Corridor (3,640 km, Silchar–Porbandar).
• 3Indian Railways, introduced in 1853 on the Bombay–Thane route (34 km), now has a network of 67,956 km divided into 17 zones; track gauges are broad (1.676 m), metre (1 m), and narrow (0.762/0.610 m).
• 4Konkan Railway (760 km, Roha to Mangalore, 1998) crosses 146 rivers, nearly 2,000 bridges, and 91 tunnels including Asia's largest tunnel (~6.5 km).
• 5India has 14,500 km of navigable waterways; 111 National Waterways were declared under the National Waterways Act, 2016; NW1 (Prayagraj–Haldia, 1,620 km on the Ganga) is the most important.

India's international trade grew from Rs. 1,214 crore in 1950-51 to Rs. 77,19,796 crore in 2020-21, with manufactured goods forming 67.8% of exports and fuel (petroleum, coal) accounting for 31.6% of imports in 2021-22. The chapter covers trade composition, direction, India's 12 major ports and 200 minor ports, and the role of air transport in overseas trade.

• 1India's external trade grew from Rs. 1,214 crore (1950-51) to Rs. 77,19,796 crore (2020-21), yet India's share in total world trade volume is around one per cent.
• 2Imports have consistently exceeded exports — the trade deficit widened to Rs. 14,25,753 crore in 2021-22.
• 3Manufactured goods dominate exports at 67.8% in 2021-22; crude and petroleum products rose sharply to 16.4%, while agriculture and allied products fell to 11.9%.
• 4Fuel (Coal, POL) is the largest import category at 31.6% in 2021-22; capital goods declined steadily to 10.1%; food and allied products fell to 4.4%.
• 5Asia and ASEAN is the largest import source region, accounting for Rs. 29,18,577 crore of imports in 2021-22.

Chapter 9 of India: People and Economy examines five interconnected issues — water, air, land, and noise pollution; urban waste disposal; rural–urban migration; problems of slums; and land degradation — using a geographical lens grounded in Indian case studies.

• 1Pollution is classified into four types — air, water, land, and noise — based on the medium through which pollutants are transported and diffused.
• 2Industry is the most significant contributor to water pollution; major water-polluting industries are leather, pulp and paper, textiles, and chemicals.
• 3About one-fourth of communicable diseases in India are water-borne (WHO); common water-borne diseases include diarrhoea, intestinal worms, and hepatitis.
• 4The Namami Gange Programme aims to develop sewerage treatment systems, monitor industrial effluents, develop river fronts, carry out afforestation, and create Ganga Grams in Uttarakhand, UP, Bihar, Jharkhand, and West Bengal.
• 5In metropolitan cities (Mumbai, Kolkata, Chennai, Bengaluru) about 90% of solid waste is collected; in most other cities, 30–50% is left uncollected, causing serious health hazards.