BharatNotes Why this chapter matters for UPSC: Settlement geography is a GS1 staple: the types of rural settlement and the conditions that produce them, the evolution of Indian towns, urbanisation and its problems, and the functions of cities. Mains has asked about the social problems of rapid urbanisation, segregation of the poor in metropolises, smart cities and smart villages, and IT-hub cities. In the 2026-27 NCERT reprint this is Chapter 2, "Human Settlements". The reprint keeps the rural types, the evolution of towns, the urbanisation table and the functional classification, adds the Census definition of an urban place, and drops the size classes of towns, the definitions of metropolitan and mega cities and urban agglomerations, and the table of million-plus cities. This page keeps all of it, labelling the 2021-22 material.
Contemporary hook: Census 2011 is still India's latest count: 31.16% of Indians lived in urban areas (NCERT's provisional figure), and urban population had grown eleven-fold in the twentieth century. The UN's World Urbanization Prospects 2025 estimates India at 35.7% urban in 2025 on India's own definitions, rising to 43.1% by 2050. On the UN's common definition of a city, five Indian cities had passed 10 million people by 2025: New Delhi (30.2 million), Kolkata (22.6), Mumbai (20.2), Bengaluru (13.2) and Chennai (11.2).
🧠 First Principles — Read This First
A settlement is people plus the land they live from. NCERT defines a human settlement as a "cluster of dwellings of any type or size where human beings live", together with the area people command as their economic support base. So settling always means grouping people and apportioning territory. Size changes everything else: as settlements grow, their economic character, social structure, ecology and technology change. Small, sparsely spaced settlements specialising in agriculture and other primary activities are villages; fewer, larger settlements specialising in secondary and tertiary activities are towns and cities.
Villages and towns need each other. Rural settlements live from land-based primary activities; urban ones from processing raw materials, manufacturing and services. Cities are "nodes of economic growth": they supply goods and services to their own people and to the villages of their hinterland, in return for food and raw materials, through transport and communication networks. Social life differs too: rural people are less mobile and their relations intimate, while urban life is complex and fast and relations formal. Every topic in the chapter, from why a Rajasthan village is compact to why a city becomes multi-functional, follows from these two ideas.
PART 1 — Quick Reference
The Four Types of Rural Settlement (NCERT)
| Type | What it looks like | Where NCERT places it |
|---|---|---|
| Clustered (agglomerated, nucleated) | Compact, closely built-up area of houses, separate from the farms, barns and pastures around it; streets form a rectangular, radial or linear pattern | Fertile alluvial plains and the north-eastern States; for security or defence in Bundelkhand and Nagaland; in Rajasthan because scarce water must be used to the maximum |
| Semi-clustered (fragmented) | A cluster forming in a dispersed area, or a large compact village splitting: the land-owning, dominant community in the centre, lower strata and menial workers on the outer flanks | Gujarat plain and parts of Rajasthan |
| Hamleted | Several physically separate units with a common name, locally panna, para, palli, nagla, dhani; segmentation often driven by social and ethnic factors | Middle and lower Ganga plain, Chhattisgarh, lower valleys of the Himalayas |
| Dispersed (isolated) | Isolated huts or hamlets of a few huts in remote jungles or on small hills, with farms or pasture on the slopes; caused by extremely fragmented terrain and land | Many areas of Meghalaya, Uttarakhand, Himachal Pradesh and Kerala |
The factors behind the type are three: physical (terrain, altitude, climate, water), cultural and ethnic (social structure, caste, religion) and security (defence against thefts and robberies).
Urbanisation in India, 1901-2011 (NCERT Table 4.1)
Size Classes of Towns, Census 2011 (NCERT Table 4.2, 2021-22 text)
| Class | Population | Number | Urban population (thousand) | % of urban population |
|---|---|---|---|---|
| I | 1,00,000 and more | 468 | 2,27,899 | 60.45 |
| II | 50,000-99,999 | 474 | 41,328 | 10.96 |
| III | 20,000-49,999 | 1,373 | 58,174 | 15.43 |
| IV | 10,000-19,999 | 1,683 | 31,866 | 8.45 |
| V | 5,000-9,999 | 1,749 | 15,883 | 4.21 |
| VI | Less than 5,000 | 424 | 1,956 | 0.51 |
Source: NCERT Class XII, India: People and Economy (2021-22), Table 4.2, from Census of India 2011 (provisional). The six classes add up to 6,171 towns, the figure in NCERT's Table 4.1.
The Largest Urban Agglomerations, Census 2011 (from NCERT Table 4.3)
| Rank | Urban agglomeration | Population (2011, provisional) |
|---|---|---|
| 1 | Greater Mumbai UA | 18,414,288 |
| 2 | Delhi UA | 16,314,838 |
| 3 | Kolkata UA | 14,112,536 |
| 4 | Chennai UA | 8,696,010 |
| 5 | Bengaluru UA | 8,499,399 |
| 6 | Hyderabad UA | 7,749,334 |
| 7 | Ahmedabad UA | 6,352,254 |
| 8 | Pune UA | 5,049,968 |
| 9 | Surat UA | 4,585,367 |
| 10 | Jaipur (M Corp.) | 3,073,350 |
Source: NCERT (2021-22), Table 4.3, which lists all 53 million-plus cities and agglomerations from Census 2011 (provisional); ranks here are sorted from it.
PART 2 — Concepts & Narrative
Rural Settlements
The type of a rural settlement is set by the extent of its built-up area and the distance between houses. NCERT notes that the compact or clustered village of a few hundred houses is "a rather universal feature", particularly in the northern plains, but other forms exist where the conditions differ.
Clustered villages have a distinct living area, separate from the fields around them, with a recognisable street pattern. They are found in the fertile alluvial plains and in the north-eastern States. People also cluster for defence, as in Bundelkhand in central India and in Nagaland; in Rajasthan the scarcity of water has made settlements compact so that every source is used to the full.
Semi-clustered or fragmented settlements arise in two ways: a tendency to cluster within a restricted part of a dispersed area, or the break-up of a large compact village. In the second case one or more sections of village society "choose or is forced to" live a little away from the main cluster: the land-owning and dominant community holds the centre and the lower strata and menial workers settle on the outer flanks. NCERT places them in the Gujarat plain and parts of Rajasthan.
Hamleted settlements are fragmented into several units that are physically separate but share a name. Local names include panna, para, palli, nagla and dhani. Social and ethnic factors often drive the segmentation. They are common in the middle and lower Ganga plain, Chhattisgarh and the lower Himalayan valleys.
Dispersed settlements are isolated huts or small hamlets in remote jungles or on small hills, where extremely fragmented terrain allows only scattered patches of habitable land. NCERT names Meghalaya, Uttarakhand, Himachal Pradesh and Kerala. (NCERT also captions a photograph of Nagaland as "dispersed settlements" while naming Nagaland under clustered villages built for defence; both patterns occur in hill States.)
Why the desert village is compact
NCERT asks what decides the location of villages in deserts. The answer runs through all three factors. Water comes first: villages sit at wells, tanks or other dependable sources, and in Rajasthan scarce water "has necessitated compact settlement for maximum utilisation of available water resources". Terrain and climate come next: higher, firm ground away from shifting sand and floodwater, with houses packed together against heat and wind. Social structure and security shape the layout within the village: the semi-clustered form, with the dominant community at the centre, is one NCERT finds in parts of Rajasthan. A good answer names the factor and gives NCERT's example for each.
Urban Settlements and the Evolution of Towns
Urban settlements are generally compact and larger, and engaged in non-agricultural, economic and administrative functions. They exchange goods and services with the villages around them, sometimes directly and sometimes through a series of market towns, so cities are connected with villages and with each other. Towns have existed in India since prehistoric times: Harappa and Mohenjodaro were towns of the Indus valley civilisation, and towns continued "with periodic ups and downs" until the Europeans arrived. NCERT classifies Indian towns by when they evolved:
- Ancient towns, more than 2,000 years old, most of them religious and cultural centres: Varanasi, Prayag (now Prayagraj), Pataliputra (Patna) and Madurai.
- Medieval towns, about 100 of today's towns, most of them headquarters of principalities and kingdoms; fort towns built on the ruins of ancient towns: Delhi, Hyderabad, Jaipur, Lucknow, Agra and Nagpur.
- Modern towns, developed by the British and other Europeans: first trading ports on the coast (Surat, Daman, Goa, Pondicherry), then the three British nodes of Mumbai, Chennai and Kolkata, built in the British style, then administrative centres, hill towns as summer resorts, and new civil, administrative and military areas. Towns based on modern industry evolved after 1850, such as Jamshedpur.
After independence, many towns were built as administrative headquarters (Chandigarh, Bhubaneswar, Gandhinagar, Dispur) and industrial centres (Durgapur, Bhilai, Sindri, Barauni). Some old towns grew as satellite towns around metropolitan cities, such as Ghaziabad, Rohtak and Gurugram around Delhi, and rising investment in rural areas produced many medium and small towns.
What the Census Counts as a Town
The 2026-27 reprint adds the Census definition, quoting Census 1991: places with a municipality, corporation, cantonment board or notified town area committee, with a minimum population of 5,000, at least 75% of male workers in non-agricultural pursuits and a density of at least 400 persons per square kilometre. NCERT's exercise turns on it: a town is not defined by "more than 75% of the population engaged in the primary sector", which is the opposite of the 75% test. Census 2011 counted 7,935 towns.
Urbanisation in India
The level of urbanisation is the percentage of the total population that is urban. In 2011 it was 31.16%, "quite low in comparison to developed countries". Urban population grew eleven-fold during the twentieth century, from about 2.6 crore in 1901 to 28.5 crore in 2001, through the enlargement of existing centres and the emergence of new towns, but the growth rate has slowed over the last two decades (from 46.14% in 1971-81 to 31.08% in 2001-11, NCERT Table 4.1). The table also shows the number of towns falling from 2,843 in 1951 to 2,365 in 1961 while urban population kept rising: a count of towns depends on how the Census defines one, which is why the definition matters.
The final Census 2011 count put India's urban population at 37.71 crore. Census 2011 remains the latest census: the next one, Census 2027, is under way, and its reference dates were amended by notification in September 2026. Between censuses, the UN's estimate on India's own definition is the usual reference: 35.7% urban in 2025 and 43.1% by 2050 (World Urbanization Prospects 2025).
Size Classes, Metropolitan Cities and Agglomerations (2021-22 text)
The Census classifies urban centres into six classes (Table above). A centre with more than one lakh people is a city or Class I town. NCERT's 2021-22 text defines metropolitan cities as those of one to five million and mega cities as those above five million; most of both are urban agglomerations. An urban agglomeration is one of three combinations: (i) a town and its adjoining urban outgrowths; (ii) two or more contiguous towns, with or without their outgrowths; (iii) a city and one or more adjoining towns with their outgrowths, forming a contiguous spread.
More than 60% of India's urban population lived in Class I towns in 2011 (60.45%). Of 468 cities, 53 were million-plus metropolitan cities or agglomerations. NCERT says six were mega cities over five million, holding more than one-fifth (21.0%) of urban population: Greater Mumbai (the largest, 18.4 million), Delhi, Kolkata, Chennai, Bengaluru and Hyderabad. Its own Table 4.3, however, also lists Ahmedabad (6.35 million) and Pune (5.05 million) above five million, which makes eight on NCERT's definition. Note too that the UN uses "megacity" for cities of 10 million or more, on its own boundaries, so its count (five Indian megacities in 2025) is not comparable with NCERT's.
Metropolitan city vs urban agglomeration
A metropolitan city is defined by size: in NCERT, one to five million people (above five million, a mega city). An urban agglomeration is defined by physical continuity: a town with its outgrowths, or contiguous towns, or a city with adjoining towns, forming one built-up spread. The two overlap because most large cities have grown past their municipal limits, so most metropolitan and mega cities are counted as agglomerations; a single municipal corporation of a million people (Jaipur, Ludhiana, Faridabad in NCERT's table) is a metropolitan city without being an agglomeration.
Functional Classification of Towns
Every town performs many functions, but some specialise. NCERT's classes and examples:
| Function | NCERT's examples |
|---|---|
| Administrative | Chandigarh, New Delhi, Bhopal, Shillong, Guwahati, Imphal, Srinagar, Gandhinagar, Jaipur, Chennai |
| Industrial | Mumbai, Salem, Coimbatore, Modinagar, Jamshedpur, Hugli, Bhilai |
| Transport | Ports: Kandla, Kochi, Kozhikode, Visakhapatnam; inland hubs: Agra, Dhulia, Mughalsarai (Pandit Deendayal Upadhyay Nagar in the 2026-27 reprint), Itarsi, Katni |
| Commercial | Kolkata, Saharanpur, Satna |
| Mining | Raniganj, Jharia, Digboi, Ankaleshwar, Singrauli |
| Garrison (cantonment) | Ambala, Jalandhar, Mhow, Babina, Udhampur |
| Educational | Roorkee, Varanasi, Aligarh, Pilani, Allahabad (Prayagraj) |
| Religious and cultural | Varanasi, Mathura, Amritsar, Madurai, Puri, Ajmer, Pushkar, Tirupati, Kurukshetra, Haridwar, Ujjain |
| Tourist | Nainital, Mussoorie, Shimla, Pachmarhi, Jodhpur, Jaisalmer, Udagamandalam (Ooty), Mount Abu |
Functions are not static. As specialised cities grow into metropolises they become multi-functional: industry, business, administration and transport all become important, and the functions are so intertwined that the city cannot be put in a single class. That answers NCERT's question whether a one-function town can exist: only while it is small.
The Smart Cities Mission and Other Urban Programmes
NCERT's box on the Smart Cities Mission gives its objective: cities that provide core infrastructure, a clean and sustainable environment and a decent quality of life, applying "smart solutions" to infrastructure and services (less vulnerability to disasters, fewer resources, cheaper services), with compact areas developed as a replicable model, "a lighthouse to other aspiring cities".
Where the urban missions stand (2025-26)
- Smart Cities Mission: launched in 2015 for 100 cities; the mission was completed on 31 March 2025. As of March 2025, over 93% of its more than 8,000 projects were complete and the Centre had released 99.44% of the mission's ₹48,000 crore outlay; the cities' special purpose vehicles and command-and-control centres continue.
- AMRUT 2.0: launched on 1 October 2021; it aims at household tap connections in all 4,378 statutory towns, and at universal sewerage and septage management in the 500 cities of the first AMRUT.
- Pradhan Mantri Awas Yojana (Urban): 127.68 lakh houses sanctioned under PMAY-U and PMAY-U 2.0 together (16.20 lakh under 2.0), and 99.07 lakh completed or delivered, as on 13 July 2026.
These are Ministry of Housing and Urban Affairs figures released through PIB; when you quote them in an answer, give the date, because they change every few months.
Urbanisation and Its Problems
NCERT's chapter closes on the city's two faces only briefly, but the problems are the exam's favourite: slums on environmentally degraded land, congestion, inadequate water, sanitation and waste disposal, and pollution. These are taken up in NCERT's last chapter, "Geographical Perspective on Selected Issues and Problems", which describes slums as "residential areas of the least choice" and gives Dharavi in Mumbai as its case study (see that page). For the scale of the problem, Census 2011 is again the reference: its Primary Census Abstract for slums counts 6,54,94,604 people (about 6.55 crore, in 1.39 crore households) living in slums in 2,613 towns, the largest number in Maharashtra (1.18 crore), followed by Andhra Pradesh (then undivided), West Bengal and Uttar Pradesh.
PART 3 — UPSC Integration
Cross-paper relevance
- GS1 (Geography, Society): types and patterns of rural settlement; evolution and functions of towns; urbanisation and its social problems; segregation in metropolises.
- GS2 (Governance): urban local bodies and the urban missions (Smart Cities, AMRUT, PMAY-U).
- GS3 (Economy, Infrastructure): cities as engines of growth; urban infrastructure and housing.
- Essay: the city and the village; inclusive urbanisation.
Frames that score. For a rural settlement question, give NCERT's four types with a region for each and tie each to its factor (water in Rajasthan, defence in Bundelkhand and Nagaland, social segmentation in the hamlets of the Ganga plain, fragmented terrain in the hills). For urbanisation, combine NCERT's trend (31.16% in 2011, eleven-fold growth, slowing rate) with the UN's 2025 estimate, and keep the bases apart. For functional towns, give two examples per class from NCERT's list and close with why large cities become multi-functional.
Exam Strategy
For Prelims: NCERT's examples are the questions: the four rural types and their regions; panna, para, palli, nagla and dhani as names of hamlets; the medieval fort towns; post-independence administrative and industrial towns; satellite towns of Delhi; the functional classes with examples (Digboi and Ankaleshwar as mining towns; Mhow and Babina as garrison towns); the Census definition (5,000 people, 75% of male workers outside agriculture, 400 per square kilometre).
For Mains: Use NCERT's structure (types and factors; evolution; functions) and bring in data with its source and year: Census 2011 for India, World Urbanization Prospects 2025 for current estimates, and the ministry's release for a programme.
Avoid: treating "metropolitan city" and "urban agglomeration" as the same; using the UN's 10-million "megacity" and NCERT's 5-million "mega city" interchangeably; and quoting a census after 2011 (none has been completed).
Practice Questions
Practice (UPSC-pattern, not past papers). Questions 1 to 3 are NCERT's own exercise MCQs.
Prelims:
Which one of the following towns is NOT located on a river bank?
(a) Agra
(b) Bhopal
(c) Patna
(d) KolkataWhich one of the following is NOT part of the definition of a town as per the Census of India?
(a) Population density of 400 persons per sq km
(b) Presence of municipality, corporation, etc.
(c) More than 75% of the population engaged in the primary sector
(d) Population size of more than 5,000 personsIn which one of the following environments does one expect the presence of dispersed rural settlements?
(a) Alluvial plains of Ganga
(b) Arid and semi-arid regions of Rajasthan
(c) Lower valleys of Himalayas
(d) Forests and hills in north-eastConsider the following pairs of a town and its function in NCERT's classification:
- Digboi : mining town
- Mhow : garrison town
- Satna : commercial town
How many of the pairs given above are correctly matched?
(a) Only one
(b) Only two
(c) All three
(d) None
- Digboi : mining town
Hamleted settlements, locally called panna, para, palli, nagla or dhani, are most frequently found in:
(a) the Gujarat plain
(b) the middle and lower Ganga plain
(c) the Thar desert
(d) the Kerala coastArrange the following urban agglomerations in decreasing order of population in Census 2011: 1. Kolkata 2. Delhi 3. Chennai 4. Greater Mumbai
(a) 4-1-2-3
(b) 4-2-1-3
(c) 2-4-3-1
(d) 4-3-1-2
Answer notes: Q1, NCERT's key; the other three stand on the Yamuna, the Ganga and the Hugli. Q6 replaces NCERT's own exercise 1(iv), none of whose four options gives the order of its Table 4.3 (Greater Mumbai 18.4 million, Delhi 16.3, Kolkata 14.1, Chennai 8.7); the 2026-27 reprint drops that question.
Mains:
- Discuss the features of different types of rural settlements. What factors are responsible for settlement patterns in different physical environments? (250 words)
- Can one imagine a town with only one function? Why do cities become multi-functional? (150 words)
- What are metropolitan cities? How are they different from urban agglomerations? (150 words)
📦 Revision Capsule
Hard Facts
- Four rural types: clustered (alluvial plains, NE; defence in Bundelkhand and Nagaland; water in Rajasthan), semi-clustered (Gujarat plain, parts of Rajasthan), hamleted (middle and lower Ganga plain, Chhattisgarh, lower Himalayan valleys), dispersed (Meghalaya, Uttarakhand, HP, Kerala)
- Factors: physical, cultural and ethnic, security
- Towns: ancient (Varanasi, Prayag, Pataliputra, Madurai); medieval, about 100 (Delhi, Hyderabad, Jaipur, Lucknow, Agra, Nagpur); modern (Surat, Daman, Goa, Pondicherry; Mumbai, Chennai, Kolkata; Jamshedpur after 1850)
- Census town: 5,000 people, 75% of male workers non-agricultural, 400 per sq km; 7,935 towns in 2011
- Urbanisation 2011: 31.16% (NCERT); 37.71 crore urban (final); eleven-fold growth in the 20th century; UN WUP 2025: 35.7% (2025), 43.1% (2050)
- 2011: 468 Class I cities hold 60.45% of urban population; 53 million-plus; Greater Mumbai 18.4 m largest
- UN megacities (10 m+, 2025): New Delhi 30.2 m, Kolkata 22.6, Mumbai 20.2, Bengaluru 13.2, Chennai 11.2
- Smart Cities Mission 25-Jun-2015 to 31-Mar-2025, 100 cities
Core Concepts
- Villages and towns are linked: food and raw materials one way, goods and services the other
- Settlement type follows water, terrain, social structure and security
- Large cities become multi-functional
- Growth of urban population is fast; the rate of growth has slowed since the 1980s
Confused Pairs
- Metropolitan city (size, 1-5 million in NCERT) vs urban agglomeration (continuous built-up spread)
- NCERT's mega city (over 5 million) vs UN megacity (10 million or more)
- Semi-clustered (dominant group at the centre, others on the flanks) vs hamleted (separate units, one village name)
- Satellite town (an old town grown into a metropolitan region: Ghaziabad, Rohtak, Gurugram) vs post-independence planned town (new administrative or industrial centres: Chandigarh, Gandhinagar, Bhilai)
PYQ Pattern
- Mains has asked about the social problems of rapid urbanisation, whether urbanisation segregates the poor in metropolises, smart cities and smart villages, the Smart City Programme, and IT-hub cities.
Sources
- NCERT, India: People and Economy (Class XII), ch. 4 "Human Settlements", Tables 4.1-4.3 (2021-22 print), and ch. 2 (Reprint 2026-27): 2021 book archive, Wayback copy; 2026-27 book archive.
- UN DESA Population Division, World Urbanization Prospects 2025: Summary of Results, Tables A3 and A4: desapublications.un.org.
- Census of India 2011, Primary Census Abstract for Slum: censusindia.gov.in catalogue. Primary Census Abstract highlights, chapter 1: Wayback copy.
- PIB (Ministry of Housing and Urban Affairs): Smart Cities Mission review and Advisory No. 27 (2025): pib.gov.in; AMRUT 2.0 approval (October 2021): pib.gov.in; PMAY-U progress (27 July 2026): pib.gov.in.
