Population of India and its Place in the World: ISC Class 12 Geography

What Population of India is about

Weightage: CISCE publishes no chapter or unit weightage for ISC Geography. Population of India is part of 2. Population and Human settlements (i) 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

Size of India's population (Census 2011)

Census 2011 (reference date 1 March 2011) counted 1,210.8 million people, usually written as about 121 crore.

Key figures to learn:
1. Total: 1,210.8 million (males about 623 million, females about 588 million).
2. Increase in 2001-2011: about 182 million people were added in the decade (final count; the provisional total gave 181 million), a little fewer than the whole population of Brazil at the time.
3. Decadal growth rate 2001-2011: 17.7 per cent (down from 21.5 per cent in 1991-2001), the sharpest fall in growth since Independence.
4. Density: 382 persons per square kilometre (325 in 2001).
5. Most populous state: Uttar Pradesh, about 200 million (16.5 per cent of India); least populous state: Sikkim, about 6 lakh.

Why it matters: these numbers set the scale of demand for food, water, housing, jobs, schools and health care. A student who quotes them precisely shows command of the topic; a student who quotes them loosely (or from different years) loses marks.

Worked example

[4] Give four facts that show the size of India's population according to the 2011 Census. (Recall)

Try it first, then show the solutionSolution

1. Total population 1,210.8 million (about 121 crore) - 1 mark.
2. About 17.5 per cent of the world's population - 1 mark.
3. Density of 382 persons per sq km - 1 mark.
4. Decadal growth of 17.7 per cent (2001-2011), adding about 182 million people - 1 mark.

Answer: According to the 2011 Census, India had 1,210.8 million people (about 121 crore), which was about 17.5 per cent of the world's population. The average density was 382 persons per sq km, and the population grew by 17.7 per cent in 2001-2011, adding about 182 million people in a single decade.

India's share of world population versus its share of world area

India occupies 3.287 million sq km, which is about 2.4 per cent of the world's land area, but supports about 17.5 per cent of the world's population (2011). In simple terms, roughly one person in every six on Earth is an Indian.

The gap between these two shares is the key idea of the topic:
1. Share of population (17.5 per cent) is about seven times the share of area (2.4 per cent).
2. This means India's average density is far above the world average (the world has roughly 50-60 persons per sq km; India had 382 in 2011).
3. The pressure falls on land, water, forests and urban services.

Comparison helps: the USA has about 6 per cent of the world's area but under 5 per cent of its population; Russia has over 11 per cent of the area but about 2 per cent of the population. India has the opposite pattern.

Reasons the share is so high: fertile alluvial plains, a monsoon climate that allows two or three crops a year, a long history of settled agriculture supporting dense populations, and high birth rates in the 20th century as death rates fell.

Worked example

[4] 'India has 2.4 per cent of the world's area but about 17.5 per cent of its population.' Explain two reasons for this and two consequences. (Analyse)

Try it first, then show the solutionSolution

1. Reason: fertile alluvial plains and a monsoon climate support intensive agriculture and dense settlement - 1 mark.
2. Reason: death rates fell sharply after 1921 while birth rates stayed high for decades - 1 mark.
3. Consequence: heavy pressure on land, water and forests; small farm holdings - 1 mark.
4. Consequence: large demand for jobs, housing, health and education; but also a large labour force and market - 1 mark.

Answer: India's fertile river plains and monsoon climate have supported intensive farming and dense settlement for centuries, and after 1921 death rates fell steeply while birth rates remained high, so numbers rose rapidly. As a result there is heavy pressure on land, water and forests, with small holdings, and a huge demand for jobs, housing, health and education, although the same numbers also give India a large workforce and domestic market.

India's position in the world

In 2011 India was the second most populous country in the world, after China (about 1,340 million). The two countries together held over one-third of humanity.

Since then India's population has continued to grow faster than China's. United Nations population estimates (World Population Prospects) show that India overtook China as the most populous country in 2023. Because no census has been held since 2011, current figures for India are estimates and projections, not census counts.

In the exam:
1. If the question says 'according to the 2011 Census', India ranks second.
2. If it asks about the present position, say India is now estimated to be the most populous country, having overtaken China in 2023 according to UN estimates.

Other comparisons: India's 2011 population was larger than that of the whole of Africa at the time and larger than the combined population of the USA, Indonesia, Brazil, Pakistan and Bangladesh; Uttar Pradesh alone had more people than any country except China, India, the USA and Indonesia.

Worked example

[2] What was India's rank in world population in 2011, and how has it changed since? (Recall)

Try it first, then show the solutionSolution

1. In 2011 India ranked second, after China - 1 mark.
2. UN estimates show India became the most populous country in 2023 - 1 mark.

Answer: At the 2011 Census India was the second most populous country after China. According to United Nations estimates, India overtook China in 2023 and is now the most populous country in the world.

What a census is and why the latest census matters

A census is the official, complete count of a country's population carried out at a fixed date, recording the demographic, social and economic details of every person.

In India:
1. The census is conducted every ten years by the Office of the Registrar General and Census Commissioner, under the Census Act, 1948.
2. The first synchronous (all-India, same-time) census was held in 1881; the first after Independence was in 1951; Census 2011 was the 15th since 1872 and the 7th since Independence.
3. Census 2021 was postponed; the next census is planned with a reference date of 1 March 2027 (1 October 2026 for snow-bound areas). Until its results are published, Census 2011 is the 'latest census' used in ISC answers.

Why it matters for this chapter: every figure you quote for population size, share, density or growth should be a census figure with its year, so the examiner can check it.

Worked example

[2] Define census. Which census provides the figures used for India's population in the ISC syllabus? (Recall)

Try it first, then show the solutionSolution

1. Census: the official count of the entire population of a country at a fixed date, with their demographic, social and economic details - 1 mark.
2. The 2011 Census, the latest whose results are available - 1 mark.

Answer: A census is the official enumeration of every person in a country at a fixed point of time, recording details such as age, sex, literacy and occupation. India's figures are taken from the 2011 Census, the latest census with published results.

Implications of India's large population

A large population is both a challenge and a resource.

Challenges (pressure on resources):
1. Land: shrinking per-capita land; fragmentation of holdings; encroachment on forests and pastures.
2. Food and water: high demand; over-use of groundwater in the north-west.
3. Employment: millions join the workforce each year; underemployment in agriculture.
4. Services: shortage of housing, schools, hospitals and urban infrastructure; growth of slums.
5. Environment: pollution, deforestation and loss of biodiversity.

Opportunities (population as a resource):
1. A large working-age population (the demographic dividend) if educated, healthy and employed.
2. A huge domestic market that attracts investment.
3. Skilled human resources, for example in information technology and services.

The balance depends on planned development: education, health, skills and sustainable use of resources. This links directly to the next two sub-topics on distribution and growth.

Worked example

[4] 'India's population is both a liability and an asset.' Justify the statement with two points on each side. (Evaluate)

Try it first, then show the solutionSolution

1. Liability: pressure on land, food and water; small holdings - 1 mark.
2. Liability: shortage of jobs, housing and services; slums and pollution - 1 mark.
3. Asset: large working-age population can yield a demographic dividend - 1 mark.
4. Asset: big domestic market and skilled human resources - 1 mark.

Answer: The population is a liability because it puts heavy pressure on land, food and water and creates shortages of jobs, housing, health care and schools, leading to slums and pollution. It is an asset because a large, young, working-age population can produce a demographic dividend if educated and employed, and because it creates a huge domestic market and a pool of skilled workers. Which side dominates depends on investment in human resources.

Population of India 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

• India's Population: Census 2011 Figures, World Share and Rank

Population of India: key facts

India's population (Census 2011)

$1,210.8million(about121crore)$

About 17.5 per cent of the world population.

Share of world area

$3.287millionsqkm=about2.4percent$

Population share is about seven times area share.

Population density

$Density=totalpopulation/totalarea(personspersqkm)$

India 2011: 382 persons per sq km.

Decadal growth rate

$(P2011-P2001)/P2001x100=17.7percent$

1991-2001 it was 21.5 per cent.

World rank

2011: second (after China); 2023 onwards: first (UN estimates)

Say which year you mean.

How the board asks Population of India

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

Tricks to remember Population of India

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

• 17.5 on 2.4

  'Seventeen and a half people on two and a half acres': India holds 17.5 per cent of people on 2.4 per cent of land.

  Use it when: World share figures.

• 121-382-17.7

  Read as a phone code: 121 crore people, 382 per sq km, 17.7 per cent decadal growth.

  Use it when: Three headline Census 2011 numbers.

• Second in 2011, first by 2023

  Census says silver; UN says gold.

  Use it when: India's world rank.

Population of India: 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 + 1 + 2 + 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 Population of India

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

• ✗Mistake: Confusing the share of world area with the share of world population

  Both are percentages about India and the world, and students swap 2.4 and 17.5.

  Wrong working

  India has 2.4 per cent of the world's population.

  Right working

  India has about 17.5 per cent of the world's population on about 2.4 per cent of its area.

  ✓Do this: Always write the two figures together in one sentence, with 'population' and 'area' named.

  Usually costs: 1 mark.

• ✗Mistake: Quoting figures without a year, or mixing census and estimate figures

  Population figures change; an examiner cannot credit '140 crore' as a census figure.

  ✓Do this: Write 'Census 2011: 121 crore'. Use UN estimates only when the present position is asked, and say they are estimates.

  Usually costs: 1 mark per figure.

• ✗Mistake: Writing several options for a one-mark MCQ

  CISCE examiners' comments, 2025, on a one-mark locational-setting item: candidates 'Listed multiple options and lost marks' and were advised to avoid listing answers. The same rule applies to every one-mark item in Section A.

  ✓Do this: Choose one option and write it with its letter, for example '(c) 17.5 per cent'.

  Usually costs: 1 mark.

• ✗Mistake: Giving only problems when asked to evaluate population as asset or liability

  An 'evaluate' question needs both sides and a judgement.

  ✓Do this: Two points on each side and a one-line conclusion about human-resource development.

  Usually costs: 1-2 marks.

• ✗Mistake: Repeating the same point in different words

  CISCE examiners' comments, 2024, on a land-use question: candidates 'Repeated one reason in different words'; the same report's general advice was to write detailed, complete sentences. 'Overpopulation' and 'too many people' count once.

  ✓Do this: Make each point a different factor: land, jobs, services, environment.

  Usually costs: 1 mark per repeat.

Practice questions on Population of India

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 percentage of the world's land area does India occupy?

   Hint

   Not the population share.

   Answer

   About 2.4 per cent.

2. Q2 · 1 mark · Very short answerBoard level

   Name the most populous and the least populous states of India according to the 2011 Census.

   Hint

   Ganga plain; small Himalayan state.

   Answer

   Most populous: Uttar Pradesh; least populous: Sikkim.

3. Q3 · 1 mark · Very short answerBoard level

   State India's population density according to the 2011 Census.

   Hint

   Between 350 and 400.

   Answer

   382 persons per sq km.

4. Q4 · 1 mark · Assertion-reasonHarder board level

   Assertion (A): India's share of world population is about seven times its share of world area.
   Reason (R): India has 17.5 per cent of the world's people and 2.4 per cent of its area.
   (a) Both A and R are true and R is the correct explanation of A.
   (b) Both A and R are true but R is not the correct explanation of A.
   (c) A is true but R is false.
   (d) A is false but R is true.

   Hint

   Divide 17.5 by 2.4.

   Answer

   (a) Both are true and R explains A (17.5 / 2.4 is about 7.3).

5. Q5 · 2 marks · Short answerHarder board level

   [2] Why is the 2011 Census still called the 'latest census' in ISC answers?

   Hint

   2021 was postponed.

   Answer

   The census due in 2021 was postponed, and the next one, with reference date 1 March 2027, has not yet published results, so 2011 is the latest census whose figures are available.

6. Q6 · 4 marks · Short answerHarder board level

   [4] Explain four problems created by India's large population.

   Hint

   Land, jobs, services, environment.

   Answer

   (1) Pressure on land: shrinking per-capita land and fragmented holdings. (2) Unemployment and underemployment as millions join the workforce each year. (3) Shortage of housing, schools, hospitals and urban services, leading to slums. (4) Environmental damage: deforestation, over-use of groundwater and pollution.

7. Q7 · 4 marks · Short answerHOTS / competency

   [4] India and the USA have very different population shares compared with their area shares. Compare them and suggest reasons.

   Hint

   USA: about 6 per cent of area, under 5 per cent of people.

   Answer

   India has about 2.4 per cent of the world's area but about 17.5 per cent of its people; the USA has about 6 per cent of the area but under 5 per cent of the people. India's warm, fertile, monsoon plains have supported dense agricultural populations for millennia and birth rates stayed high long after death rates fell; the USA has large dry, cold or mountainous areas, was settled densely only recently, and passed through the demographic transition earlier, so its growth slowed.

8. Q8 · 7 marks · Long answerHOTS / competency

   [7] (a) Define census and state how often it is conducted in India. [2]
   (b) Explain why India's share of world population is so much larger than its share of world area. [3]
   (c) Suggest two ways in which India can turn its population into an asset. [2]

   Hint

   (b) plains, monsoon, history, falling death rate.

   Answer

   (a) A census is the official count of every person in a country at a fixed date, with their demographic, social and economic details; in India it is held every ten years. (b) Fertile alluvial plains and deltas, a warm monsoon climate allowing several crops a year, a long history of settled agriculture, and a steep fall in death rates after 1921 while birth rates stayed high. (c) Invest in education and skills so that the working-age population is productive; improve health care and create jobs in industry and services.

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.India's population at the 2011 Census?Show answer

   1,210.8 million (about 121 crore).

2. 2.India's share of world population (2011)?Show answer

   About 17.5 per cent.

3. 3.India's share of world land area?Show answer

   About 2.4 per cent.

4. 4.India's rank in 2011, and now?Show answer

   Second after China in 2011; first since 2023 according to UN estimates.

5. 5.Decadal growth rate 2001-2011?Show answer

   17.7 per cent.

Quick revision checklist

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

• ☐Census 2011: 1,210.8 million people, about 121 crore.
• ☐17.5 per cent of world population on 2.4 per cent of world area.
• ☐Density 382 per sq km; decadal growth 17.7 per cent (2001-2011).
• ☐Rank: second after China in 2011; UN estimates show India first from 2023.
• ☐Most populous state Uttar Pradesh (16.5 per cent); least populous Sikkim.
• ☐Reasons: fertile plains, monsoon, settled agriculture, falling death rate after 1921.
• ☐Implications: pressure on land and services; demographic dividend if people are skilled.

Population of India: frequently asked questions