Urban Settlements in India: ISC Class 12 Geography

What Urban Settlements is about

Weightage: CISCE publishes no chapter or unit weightage for ISC Geography. Urban Settlements is part of 2. Population and Human settlements (vii) of the 2027 syllabus and can be asked anywhere in the 70-mark Paper I (Section A one-mark and map items, Section B 4-mark short answers, Section C 7-mark long answers).Source: CISCE ISC Geography (853) syllabus, examination year 2027; ISC 2027 specimen question paper

Key concepts

Definition of an urban area (Census 2011)

The census recognises two kinds of towns:

1. Statutory towns: all places with a municipality, municipal corporation, cantonment board or notified town area committee, declared by law (about 4,000 in 2011).

2. Census towns: places without such status that satisfy all three criteria (about 3,900 in 2011):
(a) a minimum population of 5,000;
(b) at least 75 per cent of the male main working population engaged in non-agricultural pursuits;
(c) a population density of at least 400 persons per sq km.

All other places are rural. The number of census towns more than doubled between 2001 and 2011, as large villages took on urban characteristics; this reclassification contributed significantly to urban growth.

Worked example

[2] State the three criteria used by the 2011 Census to classify a place as a census town. (Recall)

Try it first, then show the solutionSolution

1. Population at least 5,000; density at least 400 persons per sq km - 1 mark.
2. At least 75 per cent of male main workers in non-agricultural work - 1 mark.

Answer: A census town must have a population of at least 5,000, a density of at least 400 persons per sq km, and at least 75 per cent of its male main workers engaged in non-agricultural activities.

Size classification of towns

The census classifies towns by population into six classes:

• Class I: 1,00,000 and above (called cities)
• Class II: 50,000 to 99,999
• Class III: 20,000 to 49,999
• Class IV: 10,000 to 19,999
• Class V: 5,000 to 9,999
• Class VI: less than 5,000

Within Class I:

• Million-plus cities or urban agglomerations: 10 lakh (1 million) or more. In 2011 there were 53 million-plus urban agglomerations (35 in 2001).
• Megacities: 1 crore (10 million) or more. In 2011: Greater Mumbai UA (about 18.4 million), Delhi UA (about 16.3 million) and Kolkata UA (about 14.1 million).

Trend: Class I cities hold about 70 per cent of India's urban population, showing a 'top-heavy' urban structure; small towns have stagnated relative to large cities.

Worked example

[2] Into how many size classes does the census divide towns? What population defines a Class I city and a megacity? (Recall)

Try it first, then show the solutionSolution

1. Six classes (I to VI) - 1 mark.
2. Class I: 1,00,000 or more; megacity: 1 crore (10 million) or more - 1 mark.

Answer: Six classes, from Class I to Class VI. A Class I city has 1,00,000 or more people, and a megacity has 1 crore (10 million) or more, such as Greater Mumbai, Delhi and Kolkata in 2011.

Urban agglomeration, conurbation, urban sprawl and slums

1. Urban agglomeration (UA): a continuous urban spread made up of a town and its adjoining outgrowths, or two or more physically contiguous towns together with or without their outgrowths. In 2011 the core town of a UA had to have at least 20,000 people. Outgrowths are villages or areas such as railway colonies or university campuses next to a town that have urban features. Example: Delhi has spread and joined with neighbouring towns such as Gurugram, Noida and Ghaziabad; Greater Mumbai UA.

2. Conurbation: a large urban region formed when several separate cities and towns grow outwards and merge into one continuous built-up area, while keeping their own identities and administrations. The term was coined by Patrick Geddes. Example: Kolkata-Howrah and the Hooghly riverside towns; Mumbai-Thane-Navi Mumbai-Kalyan.

3. Urban sprawl: the unplanned, haphazard outward spread of a city into the surrounding rural fringe, usually at low density along highways, swallowing farmland and villages and outrunning roads, water and sewerage. Sprawl describes the process and its problems; agglomeration describes the resulting merged urban unit.

4. Slums: densely built, poorly constructed and congested settlements with unhygienic conditions and lack of basic amenities such as safe water, sanitation, drainage and electricity. The census counts a compact area of at least 300 people (about 60-70 households) in such conditions as a slum. In 2011 about 65 million people (about 17 per cent of the urban population) lived in slums; Dharavi in Mumbai is among Asia's largest.

Worked example

[2] Distinguish between urban agglomeration and urban sprawl. (Analyse)

Try it first, then show the solutionSolution

1. Urban agglomeration: a town with its outgrowths, or contiguous towns, forming one continuous urban unit (e.g. Delhi with Gurugram and Noida) - 1 mark.
2. Urban sprawl: unplanned, low-density spread of a city into its rural fringe, consuming farmland and outrunning services - 1 mark.

Answer: An urban agglomeration is a continuous urban unit formed by a town and its outgrowths or by two or more contiguous towns, such as Delhi merging with Gurugram, Noida and Ghaziabad. Urban sprawl is the unplanned, low-density spread of a city into surrounding rural land, eating up farmland and outrunning roads, water and sewerage.

Factors influencing the growth of urban centres

1. Industrialisation: factories attract workers and ancillary industries (Jamshedpur around TISCO, Bhilai, Bokaro, Surat).
2. Trade, commerce and ports: Mumbai, Kolkata, Chennai and Kochi grew as ports; market towns grew at route junctions.
3. Transport and accessibility: railway junctions, highways and airports (Mughalsarai, Itarsi; cities along the Golden Quadrilateral).
4. Administration: national and state capitals (Delhi, Chandigarh, Bhubaneswar, Gandhinagar) and district headquarters.
5. Mining: Dhanbad, Jharia, Singrauli.
6. Services, education and IT: Bengaluru, Hyderabad, Pune.
7. Religion, culture and tourism: Varanasi, Haridwar, Puri, Ajmer, Madurai; hill stations such as Shimla and Darjeeling.
8. Defence: cantonment towns such as Mhow and Ambala.
9. Rural-urban migration (push from villages, pull of jobs), natural increase within towns, and reclassification of villages as census towns.

Case example: Jamshedpur grew because TISCO was set up near iron ore (Noamundi), coal (Jharia), water (Subarnarekha and Kharkai rivers) and the Kolkata-Mumbai railway, and it became a hub of engineering industries.

Worked example

[2] Jamshedpur is a million-plus city. Explain one locational reason for its rise and one problem it faces today. (Apply)

Try it first, then show the solutionSolution

1. Factor: TISCO steel plant set up close to iron ore and coal of the Chota Nagpur region, with river water and rail links, attracting workers and ancillary industries - 1 mark.
2. Problem: slums, traffic congestion, air pollution, or shortage of water and sanitation - 1 mark.

Answer: Jamshedpur grew around the TISCO steel plant, located near the iron ore and coal of the Chota Nagpur region, with water from the Subarnarekha and Kharkai rivers and rail links to Kolkata, which drew workers and ancillary industries. Like other large cities it faces air pollution from industry, along with slums and traffic congestion.

Problems and advantages of urban growth

Problems:
1. Housing shortage and slums: migrants cannot afford housing.
2. Inadequate water supply, sanitation, drainage and solid-waste management.
3. Traffic congestion and inadequate public transport.
4. Air, water and noise pollution; urban heat islands; flooding from blocked drainage.
5. Unemployment and underemployment; growth of the informal sector.
6. Crime, social tension and law-and-order problems.
7. Urban sprawl: loss of farmland and wetlands at the fringe.
8. Overloaded schools, hospitals and power supply.

Advantages:
1. Engines of economic growth: cities produce most of India's GDP from a minority of the population.
2. Jobs in industry, trade and services; higher incomes.
3. Better education, health care and amenities.
4. Economies of scale: services cost less per person in dense areas.
5. Innovation, technology and social change (weakening of caste barriers, more opportunities for women).
6. Markets for rural produce, linking towns and villages.

Solutions: planned urban development (master plans, satellite towns), affordable housing and slum upgrading, mass transit (metro rail, buses), waste and water management, development of small and medium towns to reduce pressure on large cities, and programmes such as the Smart Cities Mission and AMRUT.

Worked example

[4] Discuss four problems associated with slums in Indian cities. (Understand)

Try it first, then show the solutionSolution

1. Overcrowding and congested, poorly built houses prone to fire and collapse - 1 mark.
2. Lack of safe water, toilets, drainage and electricity - 1 mark.
3. Unhygienic conditions and spread of disease - 1 mark.
4. Poverty, insecure tenure and social problems such as crime - 1 mark.

Answer: Slums are severely overcrowded, with houses built of cheap materials that are prone to fire and collapse and poorly ventilated. They lack safe drinking water, toilets, drainage and reliable electricity, so unhygienic surroundings spread diseases such as diarrhoea and tuberculosis. Residents are mostly poor, without secure ownership of their homes, and face safety problems and high rates of crime.

Urban Settlements in real life

Each concept, met in an everyday situation. Read the situation, answer the question in your own words, then compare with the model answer. The one-line hook is what to remember.

Topics in this chapter

• Urban Areas by Census, Urban Terms, Growth Factors and Problems

Urban Settlements: key facts

Census town criteria

Population	at least 5,000
Density	at least 400 per sq km
Male main workers	at least 75 per cent non-agricultural

All three must be met.

Size classes

$I:1lakh+;II:50,000-99,999;III:20,000-49,999;IV:10,000-19,999;V:5,000-9,999;VI:under5,000$

Class I = city.

Million-plus and megacity

$Million-plus:10lakh+;megacity:1crore+$

2011: 53 million-plus UAs; 3 megacities (Mumbai, Delhi, Kolkata).

Urban population 2011

$377million=about31percent$

About 65 million in slums.

Slum (census)

Compact area of at least 300 people (60-70 households) of poorly built, congested tenements without basic amenities

Also notified and recognised slums.

How the board asks Urban Settlements

The question patterns to expect, and the method that works for each.

Tricks to remember Urban Settlements

Short memory aids. Say each one aloud once, then use it on a question the same day.

• 5-75-400

  Five thousand people, seventy-five per cent off the farm, four hundred per sq km.

  Use it when: Census town.

• Class ladder halves

  Start at 1 lakh, then roughly halve: 50,000, 20,000, 10,000, 5,000, under 5,000.

  Use it when: Six classes.

• A-C-S-S

  Agglomeration (joined unit), Conurbation (merged cities), Sprawl (unplanned spread), Slum (poor housing).

  Use it when: Four terms.

Urban Settlements: board-level solved questions

Ordered from board level to HOTS. Cover the solution, write your own, then compare step by step.

Case-study practice (Section D style)

Read the situation, then answer every part. In the board paper this is a 7-mark question split into 2 + 2 + 1 + 2 marks.

Where the marks are

How a typical answer is split into step marks. Show every step: a right final answer alone rarely earns full marks.

Where students lose marks in Urban Settlements

The slips examiners see most often, and what to write instead.

• ✗Mistake: Writing urban sprawl for urban agglomeration

  CISCE examiners' comments, 2024: on Delhi merging with Gurugram and Noida, candidates 'Answered Urban Sprawl instead of Urban Agglomeration'; teachers were advised to explain these concepts with diagrams and examples.

  ✓Do this: Agglomeration = the merged urban unit (a noun for the result); sprawl = unplanned outward spread (a process).

  Usually costs: 1 mark.

• ✗Mistake: General factors for a named city

  CISCE examiners' comments, 2025: on Jamshedpur, candidates 'Could not give accurate locational factors for growth of Jamshedpur' and teachers were advised to discuss the role of TISCO.

  ✓Do this: Name the specific factor: TISCO near Jharia coal and Singhbhum iron ore, river water, rail links.

  Usually costs: 1 mark.

• ✗Mistake: Forgetting one of the three census-town criteria

  All three (5,000; 400 per sq km; 75 per cent male non-farm workers) are needed.

  ✓Do this: Learn 5-75-400 and write all three.

  Usually costs: 1 mark.

• ✗Mistake: Repeating problems in different words

  'Overcrowding' and 'congestion of people' count as one point.

  ✓Do this: Pick distinct heads: housing, services, environment, employment, social.

  Usually costs: 1 mark per repeat.

Practice questions on Urban Settlements

Write each answer on paper first. Open the hint only if you are stuck, and the answer only when you have finished.

1. Q1 · 1 mark · Very short answerBoard level

   What is the minimum population of a Class I city?

   Hint

   One lakh.

   Answer

   1,00,000.

2. Q2 · 1 mark · Very short answerBoard level

   Name the three megacities of India in 2011.

   Hint

   Over 1 crore each.

   Answer

   Greater Mumbai, Delhi and Kolkata (urban agglomerations).

3. Q3 · 1 mark · Very short answerBoard level

   What is a statutory town?

   Hint

   Declared by law.

   Answer

   A place with a municipality, corporation, cantonment board or notified town area committee.

4. Q4 · 1 mark · Very short answerHarder board level

   What is a conurbation?

   Hint

   Several cities merge.

   Answer

   A large urban region formed by the merging of several separate cities and towns into one continuous built-up area, each keeping its own identity, as along the Hooghly around Kolkata.

5. Q5 · 2 marks · Short answerHarder board level

   [2] What is an 'outgrowth' in census terms? Give an example.

   Hint

   Next to a town.

   Answer

   A viable unit such as a village or colony adjoining a town that has urban features (roads, power, drainage, schools) but is not itself a statutory town; for example a railway colony or university campus next to a city.

6. Q6 · 4 marks · Short answerHarder board level

   [4] Explain four advantages of urban growth for India's development.

   Hint

   Economy, jobs, services, change.

   Answer

   (1) Cities generate most of the national income through industry, trade and services. (2) They create jobs and higher incomes. (3) They provide better education, health care and amenities at lower cost per person. (4) They promote innovation, technology and social change, and act as markets for rural produce.

7. Q7 · 4 marks · Short answerHOTS / competency

   [4] 'Urban sprawl is a greater threat than urban growth itself.' Evaluate.

   Hint

   Planned growth versus sprawl.

   Answer

   Urban growth can be productive if planned, because dense, well-serviced cities are efficient. Sprawl, however, spreads low-density, unplanned development over farmland and wetlands, lengthens commutes, raises vehicle pollution and makes water, sewerage and transport costly to extend. So the problem lies less in growth than in its unplanned form; compact, planned growth with public transport is the remedy. The statement is largely valid.

8. Q8 · 7 marks · Long answerHOTS / competency

   [7] (a) State the census definition of an urban area. [3]
   (b) Explain why the number of census towns increased sharply between 2001 and 2011 and what this means for urban planning. [4]

   Hint

   Reclassification; services lag.

   Answer

   (a) Urban areas are statutory towns (with a municipality, corporation, cantonment board or notified town area committee) and census towns that have at least 5,000 people, at least 75 per cent of male main workers in non-agricultural work and a density of at least 400 per sq km. (b) Many large villages near cities and highways grew in population and shifted from farming to non-farm work such as trade, transport and construction, so they met the criteria and were reclassified. But they remain under rural panchayats without municipal budgets, so roads, drainage, water and waste services lag behind their urban character; planning must extend urban services and governance to them to prevent unplanned sprawl.

Test your recall

Answer in your head or on paper first, then open the card. Pulling an answer out of memory makes it stick far better than re-reading.

1. 1.Census town criteria?Show answer

   5,000 people; 400 per sq km; 75 per cent of male main workers non-agricultural.

2. 2.Number of million-plus UAs in 2011?Show answer

   53.

3. 3.Urban population share 2011?Show answer

   About 31 per cent (377 million).

4. 4.What is urban sprawl?Show answer

   Unplanned, low-density outward spread of a city into rural land.

5. 5.Slum population in 2011?Show answer

   About 65 million (about 17 per cent of urban population).

Quick revision checklist

The night before the exam: can you do each of these without looking?

• ☐Urban = statutory towns + census towns (5,000; 400 per sq km; 75 per cent male non-farm).
• ☐Classes: I (1 lakh+) to VI (under 5,000); 53 million-plus UAs; megacities Mumbai, Delhi, Kolkata.
• ☐UA: town + outgrowths or contiguous towns (Delhi with Gurugram, Noida).
• ☐Conurbation: merged cities (Kolkata-Howrah). Sprawl: unplanned spread. Slum: congested, without amenities.
• ☐Growth factors: industry, ports, transport, administration, mining, IT, religion, migration, reclassification.
• ☐Problems: slums, services, congestion, pollution, unemployment, sprawl.
• ☐Advantages: growth, jobs, services, innovation; solutions: housing, transit, small towns, planning.

Urban Settlements: frequently asked questions