NCERT Foundations

Why read it

Read it first if Polity is new to you; it makes the Class 11 book easier.

Chapters (open on phones)

1. Ch 1 · Power-sharing 12 pages · 1.9 MB
2. Ch 2 · Federalism 16 pages · 2.7 MB 1 Prelims question · Test yourself →
3. Ch 3 · Gender, Religion and Caste 17 pages · 2.4 MB
4. Ch 4 · Political Parties 17 pages · 3.6 MB
5. Ch 5 · Outcomes of Democracy 12 pages · 2.2 MB

NCERT's original ZIP (file names in code) · 13 MB · Saves as jess4dd.zip

UPSC Prelims 2016–2026

1 question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Indian Polity and Governance
• GS II: federal structure, devolution of powers

Why read it

More Prelims questions can be answered from this NCERT than from any other book on this list. Read it before any standard Polity book.

Skim or skip: Don't skip the opening pages: the Preamble and the lists of Fundamental Rights and Duties printed there answered 2 questions.

Chapters (open on phones)

1. Opening pages 2 Prelims questions · Test yourself →
2. Ch 1 · Constitution: Why and How? 25 pages · 2.9 MB 3 Prelims questions · Test yourself →
3. Ch 2 · Rights in the Indian Constitution 25 pages · 3.0 MB 7 Prelims questions · Test yourself →
4. Ch 3 · Election and Representation 27 pages · 3.2 MB 2 Prelims questions · Test yourself →
5. Ch 4 · Executive 22 pages · 2.9 MB 5 Prelims questions · Test yourself →
6. Ch 5 · Legislature 24 pages · 3.1 MB 5 Prelims questions · Test yourself →
7. Ch 6 · Judiciary 26 pages · 3.1 MB 3 Prelims questions · Test yourself →
8. Ch 7 · Federalism 26 pages · 3.6 MB 2 Prelims questions · Test yourself →
9. Ch 8 · Local Governments 20 pages · 2.7 MB 1 Prelims question · Test yourself →
10. Ch 9 · Constitution as a Living Document 24 pages · 2.6 MB 4 Prelims questions · Test yourself →
11. Ch 10 · The Philosophy of the Constitution 23 pages · 2.5 MB 2 Prelims questions · Test yourself →

NCERT's original ZIP (file names in code) · 29 MB · Saves as keps2dd.zip

UPSC Prelims 2016–2026

32 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Indian Polity and Governance
• GS II: Indian Constitution — historical underpinnings, evolution, features, amendments
• GS II: Parliament and State legislatures
• GS II: Executive and the Judiciary

Why read it

The NCERT for 'post-independence consolidation', a GS I topic. It gives context more than Prelims answers.

Chapters (open on phones)

1. Ch 1 · Challenges of Nation Building 24 pages · 8.6 MB
2. Ch 2 · Era of One-party Dominance 18 pages · 4.0 MB 1 Prelims question · Test yourself →
3. Ch 3 · Politics of Planned Development 10 pages · 2.6 MB 1 Prelims question · Test yourself →
4. Ch 4 · India's External Relations 18 pages · 5.4 MB
5. Ch 5 · Challenges to and Restoration of the Congress System 20 pages · 4.6 MB
6. Ch 6 · The Crisis of Democratic Order 20 pages · 5.5 MB 1 Prelims question · Test yourself →
7. Ch 7 · Regional Aspirations 24 pages · 6.0 MB 2 Prelims questions · Test yourself →
8. Ch 8 · Recent Developments in Indian Politics 25 pages · 6.0 MB

NCERT's original ZIP (file names in code) · 41 MB · Saves as leps2dd.zip

UPSC Prelims 2016–2026

4 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Indian Polity and Governance
• GS I: Post-independence consolidation and reorganization within the country

Why read it

Gives you the concepts and vocabulary for Mains answers and the Essay; its Prelims questions came from the freedom, equality and rights chapters.

Chapters (open on phones)

1. Ch 1 · Political Theory: An Introduction 16 pages · 1.8 MB
2. Ch 2 · Freedom 14 pages · 2.1 MB 1 Prelims question · Test yourself →
3. Ch 3 · Equality 22 pages · 2.9 MB 2 Prelims questions · Test yourself →
4. Ch 4 · Social Justice 14 pages · 2.0 MB
5. Ch 5 · Rights 12 pages · 1.8 MB 2 Prelims questions · Test yourself →
6. Ch 6 · Citizenship 18 pages · 2.6 MB
7. Ch 7 · Nationalism 14 pages · 2.7 MB
8. Ch 8 · Secularism 18 pages · 2.3 MB

NCERT's original ZIP (file names in code) · 18 MB · Saves as keps1dd.zip

UPSC Prelims 2016–2026

4 questions could be answered from this book · 1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Indian Polity and Governance
• GS I: communalism, regionalism & secularism

Why read it

Background for GS II international relations; Prelims rarely draws on it directly.

Chapters (open on phones)

1. Ch 1 · The End of Bipolarity 14 pages · 1.5 MB
2. Ch 2 · Contemporary Centres of Power 14 pages · 1.9 MB
3. Ch 3 · Contemporary South Asia 16 pages · 1.9 MB
4. Ch 4 · International Organisations 18 pages · 2.0 MB 1 Prelims question · Test yourself →
5. Ch 5 · Security in the Contemporary World 18 pages · 2.3 MB
6. Ch 6 · Environment and Natural Resources 18 pages · 3.2 MB 1 Prelims question · Test yourself →
7. Ch 7 · Globalisation 16 pages · 29 MB

NCERT's original ZIP (file names in code) · 42 MB · Saves as leps1dd.zip

UPSC Prelims 2016–2026

1 question could be answered from this book · 1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• GS II: Important International institutions, agencies and fora
• GS II: Bilateral, regional and global groupings

Why read it

The simplest way into India's economic geography. Its agriculture chapter answered 3 Prelims questions.

Chapters (open on phones)

1. Ch 1 · Resources and Development 12 pages · 1.8 MB 2 Prelims questions · Test yourself →
2. Ch 2 · Forest and Wildlife Resources 6 pages · 1.6 MB 1 Prelims question · Test yourself →
3. Ch 3 · Water Resources 11 pages · 2.0 MB
4. Ch 4 · Agriculture 12 pages · 2.3 MB 3 Prelims questions · Test yourself →
5. Ch 5 · Minerals and Energy Resources 16 pages · 2.7 MB 1 Prelims question · Test yourself →
6. Ch 6 · Manufacturing Industries 13 pages · 1.6 MB
7. Ch 7 · Lifelines of National Economy 13 pages · 2.2 MB 1 Prelims question · Test yourself →

NCERT's original ZIP (file names in code) · 15 MB · Saves as jess1dd.zip

UPSC Prelims 2016–2026

6 questions could be answered from this book · 2 Environment and Science questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Indian and World Geography
• GS III: Major crops, cropping patterns, irrigation

Why read it

All 18 of its Geography questions could be answered from the NCERT text alone, and the atmosphere and climate chapters (7–11) answered most of them.

Skim or skip: Chapter 1 (Geography as a Discipline) introduces the subject; skim it.

Chapters (open on phones)

1. Ch 1 · Geography as a Discipline 11 pages · 1.2 MB
2. Ch 2 · The Origin and Evolution of the Earth 6 pages · 0.7 MB 4 Prelims questions · Test yourself →
3. Ch 3 · Interior of the Earth 9 pages · 1.1 MB 2 Prelims questions · Test yourself →
4. Ch 4 · Distribution of Oceans and Continents 9 pages · 0.9 MB 2 Prelims questions · Test yourself →
5. Ch 5 · Geomorphic Processes 11 pages · 1.0 MB 5 Prelims questions · Test yourself →
6. Ch 6 · Landforms and their Evolution 16 pages · 1.5 MB 1 Prelims question · Test yourself →
7. Ch 7 · Composition and Structure of Atmosphere 4 pages · 0.4 MB 3 Prelims questions · Test yourself →
8. Ch 8 · Solar Radiation, Heat Balance and Temperature 9 pages · 0.9 MB 5 Prelims questions · Test yourself →
9. Ch 9 · Atmospheric Circulation and Weather Systems 10 pages · 1.1 MB 1 Prelims question · Test yourself →
10. Ch 10 · Water in the Atmosphere 5 pages · 0.5 MB
11. Ch 11 · World Climate and Climate Change 8 pages · 1.3 MB 4 Prelims questions · Test yourself →
12. Ch 12 · Water (Oceans) 9 pages · 1.0 MB
13. Ch 13 · Movements of Ocean Water 6 pages · 0.6 MB
14. Ch 14 · Biodiversity and Conservation 7 pages · 0.7 MB 1 Prelims question · Test yourself →

NCERT's original ZIP (file names in code) · 14 MB · Saves as kegy2dd.zip

UPSC Prelims 2016–2026

18 questions could be answered from this book · 9 Environment and Science questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Indian and World Geography
• GS I: Salient features of world's physical geography
• GS I: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone

Why read it

Read it with an atlas open. The drainage chapter alone answered 6 questions, and some answers can be read only off its maps.

Chapters (open on phones)

1. Ch 1 · India — Location 6 pages · 1.0 MB
2. Ch 2 · Structure and Physiography 10 pages · 1.1 MB 2 Prelims questions · Test yourself →
3. Ch 3 · Drainage System 10 pages · 1.0 MB 6 Prelims questions · Test yourself →
4. Ch 4 · Climate 15 pages · 2.0 MB 1 Prelims question · Test yourself →
5. Ch 5 · Natural Vegetation 10 pages · 1.7 MB 3 Prelims questions · Test yourself →
6. Ch 6 · Natural Hazards and Disasters 21 pages · 3.1 MB

NCERT's original ZIP (file names in code) · 11 MB · Saves as kegy1dd.zip

UPSC Prelims 2016–2026

10 questions could be answered from this book · 1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Indian and World Geography
• GS I: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone
• GS III: Disaster and disaster management

Why read it

Where Geography meets Economy: crops, irrigation, minerals and energy come up in Prelims and in GS III.

Chapters (open on phones)

1. Ch 1 · Population: Distribution, Density, Growth and Composition 14 pages · 1.9 MB
2. Ch 2 · Human Settlements 6 pages · 0.7 MB
3. Ch 3 · Land Resources and Agriculture 20 pages · 2.5 MB 3 Prelims questions · Test yourself →
4. Ch 4 · Water Resources 12 pages · 1.8 MB 2 Prelims questions · Test yourself →
5. Ch 5 · Mineral and Energy Resources 13 pages · 1.8 MB 1 Prelims question · Test yourself →
6. Ch 6 · Planning and Sustainable Development in Indian Context 9 pages · 1.2 MB 1 Prelims question · Test yourself →
7. Ch 7 · Transport and Communication 11 pages · 1.6 MB
8. Ch 8 · International Trade 9 pages · 1.2 MB 1 Prelims question · Test yourself →
9. Ch 9 · Geographical Perspective on Selected Issues and Problems 11 pages · 1.7 MB

NCERT's original ZIP (file names in code) · 16 MB · Saves as legy2dd.zip

UPSC Prelims 2016–2026

7 questions could be answered from this book · 1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Indian and World Geography
• GS I: Distribution of key natural resources; location of industries
• GS III: Major crops, cropping patterns, irrigation
• GS III: Infrastructure: Energy, Ports, Roads, Airports, Railways

Why read it

Useful for GS I's world geography of resources and industries; Prelims rarely draws on it.

Skim or skip: Chapter 1 introduces the subject; skim it.

Chapters (open on phones)

1. Ch 1 · Human Geography: Nature and Scope 6 pages · 2.5 MB
2. Ch 2 · The World Population: Distribution, Density and Growth 6 pages · 1.7 MB
3. Ch 3 · Human Development 9 pages · 1.0 MB
4. Ch 4 · Primary Activities 14 pages · 5.6 MB 1 Prelims question · Test yourself →
5. Ch 5 · Secondary Activities 9 pages · 2.6 MB
6. Ch 6 · Tertiary and Quaternary Activities 9 pages · 2.1 MB
7. Ch 7 · Transport and Communication 16 pages · 4.7 MB
8. Ch 8 · International Trade 7 pages · 2.2 MB

NCERT's original ZIP (file names in code) · 24 MB · Saves as legy1dd.zip

UPSC Prelims 2016–2026

1 question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• GS I: Distribution of key natural resources; location of industries

Why read it

Built around sources such as inscriptions, coins and texts. Theme 4, on thinkers, beliefs and buildings, is the most-asked.

Chapters (open on phones)

1. Theme 1 · Bricks, Beads and Bones: The Harappan Civilisation 27 pages · 4.4 MB 2 Prelims questions · Test yourself →
2. Theme 2 · Kings, Farmers and Towns: Early States and Economies (c. 600 BCE–600 CE) 25 pages · 4.0 MB 4 Prelims questions · Test yourself →
3. Theme 3 · Kinship, Caste and Class: Early Societies (c. 600 BCE–600 CE) 29 pages · 4.2 MB 1 Prelims question · Test yourself →
4. Theme 4 · Thinkers, Beliefs and Buildings: Cultural Developments (c. 600 BCE–600 CE) 33 pages · 9.3 MB 5 Prelims questions · Test yourself →

NCERT's original ZIP (file names in code) · 23 MB · Saves as lehs1dd.zip

UPSC Prelims 2016–2026

11 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: History of India and Indian National Movement
• GS I: Art Forms, literature and Architecture from ancient to modern times

Why read it

Prelims questions came from all four of its themes (Themes 5–8).

Chapters (open on phones)

1. Theme 5 · Through the Eyes of Travellers: Perceptions of Society (c. tenth to seventeenth century) 25 pages · 3.5 MB 1 Prelims question · Test yourself →
2. Theme 6 · Bhakti-Sufi Traditions: Changes in Religious Beliefs and Devotional Texts (c. eighth to eighteenth century) 30 pages · 4.6 MB 1 Prelims question · Test yourself →
3. Theme 7 · An Imperial Capital: Vijayanagara (c. fourteenth to sixteenth century) 26 pages · 5.1 MB 2 Prelims questions · Test yourself →
4. Theme 8 · Peasants, Zamindars and the State: Agrarian Society and the Mughal Empire (c. sixteenth–seventeenth centuries) 31 pages · 4.8 MB 2 Prelims questions · Test yourself →

NCERT's original ZIP (file names in code) · 24 MB · Saves as lehs2dd.zip

UPSC Prelims 2016–2026

6 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: History of India and Indian National Movement
• GS I: Art Forms, literature and Architecture from ancient to modern times

Why read it

Four deep themes (Themes 9–12) rather than a full survey of modern India, so pair it with a standard modern-history book.

Chapters (open on phones)

1. Theme 9 · Colonialism and the Countryside: Exploring Official Archives 31 pages · 3.7 MB 1 Prelims question · Test yourself →
2. Theme 10 · Rebels and the Raj: The Revolt of 1857 and Its Representations 28 pages · 3.5 MB 1 Prelims question · Test yourself →
3. Theme 11 · Mahatma Gandhi and the Nationalist Movement: Civil Disobedience and Beyond 30 pages · 4.3 MB 2 Prelims questions · Test yourself →
4. Theme 12 · Framing the Constitution: The Beginning of a New Era 29 pages · 3.0 MB 2 Prelims questions · Test yourself →

NCERT's original ZIP (file names in code) · 16 MB · Saves as lehs3dd.zip

UPSC Prelims 2016–2026

5 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: History of India and Indian National Movement
• GS I: The Freedom Struggle — its various stages
• GS II: Indian Constitution — historical underpinnings, evolution, features, amendments

Why read it

A short, clear account of the Non-Cooperation and Civil Disobedience movements, plus world topics in the GS I syllabus.

Chapters (open on phones)

1. Ch 1 · The Rise of Nationalism in Europe 28 pages · 5.6 MB
2. Ch 2 · Nationalism in India 22 pages · 5.1 MB 3 Prelims questions · Test yourself →
3. Ch 3 · The Making of a Global World 28 pages · 6.1 MB 1 Prelims question · Test yourself →
4. Ch 4 · The Age of Industrialisation 24 pages · 6.0 MB 2 Prelims questions · Test yourself →
5. Ch 5 · Print Culture and the Modern World 26 pages · 5.5 MB

NCERT's original ZIP (file names in code) · 29 MB · Saves as jess3dd.zip

UPSC Prelims 2016–2026

6 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: History of India and Indian National Movement
• GS I: The Freedom Struggle — its various stages
• GS I: History of the world (events from the 18th century)

Why read it

Mostly background: GS I world history starts from the 18th century, which only the last two themes reach.

Skim or skip: Read Themes 6 and 7 closely; treat the rest as background.

Chapters (open on phones)

1. Theme 1 · Writing and City Life Includes the Section I introduction
2. Theme 2 · An Empire Across Three Continents File also contains Theme 3
3. Theme 3 · Nomadic Empires Same file as Theme 2 (pp. 58–76)
4. Theme 4 · The Three Orders Section III introduction is a separate file: kehs103.pdf
5. Theme 5 · Changing Cultural Traditions
6. Theme 6 · Displacing Indigenous Peoples Includes the Section IV introduction 1 Prelims question · Test yourself →
7. Theme 7 · Paths to Modernisation

NCERT's original ZIP (file names in code) · 29 MB · Saves as kehs1dd.zip

UPSC Prelims 2016–2026

1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• GS I: History of the world (events from the 18th century)

Why read it

The NCERT base for Art & Culture. Temples and post-Mauryan art (stupas, Gandhara, Mathura) are the most-asked parts.

Chapters (open on phones)

1. Ch 1 · Prehistoric Rock Paintings 9 pages · 6.7 MB
2. Ch 2 · Arts of the Indus Valley 10 pages · 9.8 MB 1 Prelims question · Test yourself →
3. Ch 3 · Arts of the Mauryan Period 8 pages · 18 MB
4. Ch 4 · Post-Mauryan Trends in Indian Art and Architecture 34 pages · 58 MB 3 Prelims questions · Test yourself →
5. Ch 5 · Later Mural Traditions 7 pages · 6.3 MB 1 Prelims question · Test yourself →
6. Ch 6 · Temple Architecture and Sculpture 35 pages · 61 MB 2 Prelims questions · Test yourself →
7. Ch 7 · Indian Bronze Sculpture 6 pages · 7.3 MB
8. Ch 8 · Some Aspects of Indo-Islamic Architecture 24 pages · 24 MB

NCERT's original ZIP (file names in code) · 200 MB · Saves as kefa1dd.zip Large file (203 MB). On mobile data, download chapter by chapter.

UPSC Prelims 2016–2026

7 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: History of India and Indian National Movement
• GS I: Art Forms, literature and Architecture from ancient to modern times

Why read it

NCERT's book on Indian painting traditions; its Prelims questions came from the first three chapters.

Chapters (open on phones)

1. Ch 1 · The Manuscript Painting Tradition 9 pages · 2.6 MB 1 Prelims question · Test yourself →
2. Ch 2 · The Rajasthani Schools of Painting 25 pages · 7.3 MB 1 Prelims question · Test yourself →
3. Ch 3 · The Mughal School of Miniature Painting 20 pages · 5.3 MB 1 Prelims question · Test yourself →
4. Ch 4 · The Deccani Schools of Painting 12 pages · 6.0 MB
5. Ch 5 · The Pahari Schools of Painting 18 pages · 5.4 MB
6. Ch 6 · The Bengal School and Cultural Nationalism 14 pages · 3.2 MB
7. Ch 7 · The Modern Indian Art 28 pages · 5.0 MB
8. Ch 8 · The Living Art Traditions of India 17 pages · 5.3 MB

NCERT's original ZIP (file names in code) · 44 MB · Saves as lefa1dd.zip

UPSC Prelims 2016–2026

3 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: History of India and Indian National Movement
• GS I: Art Forms, literature and Architecture from ancient to modern times

Why read it

Read chapters 1 to 6. Prelims questions touched chapters 1, 2, 3 and 5, and in 2026 chapter 6 (Mathematics in India); chapter 4 adds art and architecture. English only: NCERT has not published a Hindi edition.

Read chapters 1–6 only

Chapters (open on phones)

1. Ch 1 · Language and Literature of India 18 pages · 9.4 MB 2 Prelims questions · Test yourself →
2. Ch 2 · Indian Philosophical Systems 18 pages · 4.4 MB
3. Ch 3 · Performing Art Traditions in India 24 pages · 17 MB
4. Ch 4 · Indian Art and Architecture 18 pages · 8.3 MB
5. Ch 5 · Astronomy in India 20 pages · 4.4 MB 2 Prelims questions · Test yourself →
6. Ch 6 · Mathematics in India 18 pages · 3.9 MB 1 Prelims question · Test yourself →
7. Ch 7 · Introducing Ayurveda: the Science of Health and Disease optional 20 pages · 4.8 MB
8. Ch 8 · Chemistry and Metallurgy in India optional 18 pages · 4.0 MB
9. Ch 9 · Yoga optional 16 pages · 6.4 MB

NCERT's original ZIP (file names in code) · 61 MB · Saves as keks1dd.zip

UPSC Prelims 2016–2026

2 questions could be answered from this book · 2 Environment and Science questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: History of India and Indian National Movement
• GS I: Art Forms, literature and Architecture from ancient to modern times

Why read it

Read it before the Class 11 and 12 economics books if you have no economics background.

Chapters (open on phones)

1. Ch 1 · Development 16 pages · 2.5 MB
2. Ch 2 · Sectors of the Indian Economy 20 pages · 2.7 MB 1 Prelims question · Test yourself →
3. Ch 3 · Money and Credit 16 pages · 3.4 MB 1 Prelims question · Test yourself →
4. Ch 4 · Globalisation and the Indian Economy 20 pages · 3.6 MB
5. Ch 5 · Consumer Rights 19 pages · 3.2 MB

NCERT's original ZIP (file names in code) · 16 MB · Saves as jess2dd.zip

UPSC Prelims 2016–2026

2 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Economic and Social Development

Why read it

Short and heavily asked: Money and Banking (11 questions) and the Budget chapter (10) lead. Master them before any economy book.

Skim or skip: Chapter 1 is an introduction; skim it.

Chapters (open on phones)

1. Ch 1 · Introduction 8 pages · 1.0 MB
2. Ch 2 · National Income Accounting 27 pages · 2.2 MB
3. Ch 3 · Money and Banking 17 pages · 1.6 MB 11 Prelims questions · Test yourself →
4. Ch 4 · Determination of Income and Employment 13 pages · 1.6 MB 1 Prelims question · Test yourself →
5. Ch 5 · Government Budget and the Economy 19 pages · 2.2 MB 10 Prelims questions · Test yourself →
6. Ch 6 · Open Economy Macroeconomics 15 pages · 1.4 MB 5 Prelims questions · Test yourself →

NCERT's original ZIP (file names in code) · 11 MB · Saves as leec1dd.zip

UPSC Prelims 2016–2026

25 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Economic and Social Development
• GS III: Government Budgeting
• GS III: planning, mobilization of resources, growth, development and employment

Why read it

Gives the background GS III expects on planning, land reform and liberalisation. Its rural development chapter (credit, marketing) answered 3 Prelims questions.

Chapters (open on phones)

1. Ch 1 · Indian Economy on the Eve of Independence 15 pages · 2.2 MB 2 Prelims questions · Test yourself →
2. Ch 2 · Indian Economy 1950–1990 20 pages · 2.5 MB 1 Prelims question · Test yourself →
3. Ch 3 · Liberalisation, Privatisation and Globalisation: An Appraisal 21 pages · 2.9 MB 1 Prelims question · Test yourself →
4. Ch 4 · Human Capital Formation in India 18 pages · 2.9 MB 1 Prelims question · Test yourself →
5. Ch 5 · Rural Development 17 pages · 3.1 MB 3 Prelims questions · Test yourself →
6. Ch 6 · Employment: Growth, Informalisation and Other Issues 23 pages · 2.2 MB
7. Ch 7 · Environment and Sustainable Development 17 pages · 4.3 MB 2 Prelims questions · Test yourself →
8. Ch 8 · Comparative Development Experiences of India and Its Neighbours 19 pages · 2.8 MB

NCERT's original ZIP (file names in code) · 25 MB · Saves as keec1dd.zip

UPSC Prelims 2016–2026

7 questions could be answered from this book · 2 Environment and Science questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Economic and Social Development
• GS III: Land reforms in India
• GS III: Effects of liberalization on the economy

Why read it

For concept clarity rather than exam facts. Read it after Macroeconomics if economics is new to you.

Skim or skip: Chapters 3 and 4 are graph-heavy; read for the ideas, not the derivations.

Chapters (open on phones)

1. Ch 1 · Introduction 7 pages · 1.3 MB
2. Ch 2 · Theory of Consumer Behaviour 28 pages · 4.1 MB 1 Prelims question · Test yourself →
3. Ch 3 · Production and Costs 17 pages · 2.2 MB
4. Ch 4 · The Theory of the Firm under Perfect Competition 18 pages · 2.5 MB
5. Ch 5 · Market Equilibrium 17 pages · 2.3 MB

NCERT's original ZIP (file names in code) · 13 MB · Saves as leec2dd.zip

UPSC Prelims 2016–2026

1 question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Economic and Social Development

Why read it

GS I's 'Salient features of Indian Society, Diversity of India' maps straight onto this book.

Skim or skip: Chapter 7 is guidance for school projects; skip it.

Chapters (open on phones)

1. Ch 1 · Introducing Indian Society 4 pages · 1.2 MB
2. Ch 2 · The Demographic Structure of the Indian Society 30 pages · 3.9 MB 1 Prelims question · Test yourself →
3. Ch 3 · Social Institutions: Continuity and Change 18 pages · 2.2 MB 1 Prelims question · Test yourself →
4. Ch 4 · The Market as a Social Institution 16 pages · 2.2 MB 2 Prelims questions · Test yourself →
5. Ch 5 · Patterns of Social Inequality and Exclusion 28 pages · 3.2 MB
6. Ch 6 · The Challenges of Cultural Diversity 20 pages · 2.6 MB
7. Ch 7 · Suggestions for Project Work 12 pages · 1.9 MB

NCERT's original ZIP (file names in code) · 20 MB · Saves as lesy1dd.zip

UPSC Prelims 2016–2026

4 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• GS I: Salient features of Indian Society, Diversity of India
• GS I: population and associated issues

Why read it

Matches GS I's 'Effects of globalization on Indian society' and social-empowerment topics.

Chapters (open on phones)

1. Ch 1 · Structural Change 14 pages · 2.6 MB
2. Ch 2 · Cultural Change 16 pages · 2.3 MB
3. Ch 3 · The Constitution and Social Change 10 pages · 1.7 MB 1 Prelims question · Test yourself →
4. Ch 4 · Change and Development in Rural Society 18 pages · 2.6 MB
5. Ch 5 · Change and Development in Industrial Society 12 pages · 2.0 MB
6. Ch 6 · Globalisation and Social Change 18 pages · 2.6 MB
7. Ch 7 · Mass Media and Communications 20 pages · 2.6 MB
8. Ch 8 · Social Movements 20 pages · 2.7 MB 2 Prelims questions · Test yourself →

NCERT's original ZIP (file names in code) · 22 MB · Saves as lesy2dd.zip

UPSC Prelims 2016–2026

3 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• GS I: Effects of globalization on Indian society
• GS I: Social empowerment, communalism, regionalism & secularism

Why read it

Not essential for General Studies; it is groundwork if you plan to take Sociology as your optional subject.

Skim or skip: Chapter 5 (research methods) matters mainly for the Sociology optional.

Chapters (open on phones)

1. Ch 1 · Sociology and Society 23 pages · 4.5 MB
2. Ch 2 · Terms, Concepts and Their Use in Sociology 16 pages · 1.9 MB
3. Ch 3 · Understanding Social Institutions 23 pages · 4.6 MB
4. Ch 4 · Culture and Socialisation 19 pages · 2.6 MB
5. Ch 5 · Doing Sociology: Research Methods 21 pages · 1.9 MB

NCERT's original ZIP (file names in code) · 16 MB · Saves as kesy1dd.zip

UPSC Prelims 2016–2026

No question since 2016 could be answered from it alone

2026 answers follow UPSC's provisional answer key.

Where it helps

• GS I: Salient features of Indian Society, Diversity of India

Why read it

Chapters 1–3 help GS I answers; the chapters on Western and Indian sociologists (4 and 5) are mainly for the Sociology optional.

Chapters (open on phones)

1. Ch 1 · Social Structure, Stratification and Social Processes in Society 20 pages · 2.1 MB
2. Ch 2 · Social Change and Social Order in Rural and Urban Society 29 pages · 2.8 MB
3. Ch 3 · Environment and Society 15 pages · 1.8 MB 1 Prelims question · Test yourself →
4. Ch 4 · Introducing Western Sociologists 17 pages · 2.2 MB
5. Ch 5 · Indian Sociologists 21 pages · 2.4 MB

NCERT's original ZIP (file names in code) · 12 MB · Saves as kesy2dd.zip

UPSC Prelims 2016–2026

1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• GS I: Salient features of Indian Society, Diversity of India

Why read it

It answers more Environment and Science questions than any other NCERT book (21 questions since 2016), most from Microbes in Human Welfare (ch 8). Download it chapter by chapter: the full book is a large file.

Read chapters 5, 7–13 only

Skim or skip: Skim chapters 2 (Human Reproduction) and 6 (Evolution).

Chapters (open on phones)

1. Ch 1 · Sexual Reproduction in Flowering Plants optional 25 pages · 37 MB
2. Ch 2 · Human Reproduction optional 15 pages · 65 MB
3. Ch 3 · Reproductive Health optional 10 pages · 1.3 MB
4. Ch 4 · Principles of Inheritance and Variation optional 28 pages · 19 MB
5. Ch 5 · Molecular Basis of Inheritance 31 pages · 4.1 MB 3 Prelims questions · Test yourself →
6. Ch 6 · Evolution optional 17 pages · 13 MB
7. Ch 7 · Human Health and Disease 22 pages · 4.5 MB 4 Prelims questions · Test yourself →
8. Ch 8 · Microbes in Human Welfare 12 pages · 13 MB 6 Prelims questions · Test yourself →
9. Ch 9 · Biotechnology: Principles and Processes 16 pages · 3.1 MB 2 Prelims questions · Test yourself →
10. Ch 10 · Biotechnology and its Applications 11 pages · 1.5 MB 4 Prelims questions · Test yourself →
11. Ch 11 · Organisms and Populations 17 pages · 1.6 MB 3 Prelims questions · Test yourself →
12. Ch 12 · Ecosystem 11 pages · 2.4 MB 1 Prelims question · Test yourself →
13. Ch 13 · Biodiversity and Conservation 13 pages · 2.3 MB 2 Prelims questions · Test yourself →

NCERT's original ZIP (file names in code) · 161 MB · Saves as lebo1dd.zip Large file (168 MB). On mobile data, download chapter by chapter.

UPSC Prelims 2016–2026

21 Environment and Science questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: Environmental ecology, Bio-diversity and Climate Change
• Prelims: General Science
• GS III: Conservation, environmental pollution and degradation
• GS III: bio-technology

Why read it

No Prelims question since 2016 has needed it — read it as a foundation if you have time.

Chapters (open on phones)

1. Ch 1 · The Wonderful World of Science 8 pages · 2.8 MB
2. Ch 2 · Diversity in the Living World 26 pages · 8.9 MB
3. Ch 3 · Mindful Eating: A Path to a Healthy Body 26 pages · 9.5 MB
4. Ch 4 · Exploring Magnets 18 pages · 7.5 MB
5. Ch 5 · Measurement of Length and Motion 22 pages · 5.7 MB
6. Ch 6 · Materials Around Us 22 pages · 7.1 MB
7. Ch 7 · Temperature and its Measurement 20 pages · 7.0 MB
8. Ch 8 · A Journey through States of Water 20 pages · 7.2 MB
9. Ch 9 · Methods of Separation in Everyday Life 20 pages · 7.6 MB
10. Ch 10 · Living Creatures: Exploring their Characteristics 24 pages · 8.5 MB
11. Ch 11 · Nature's Treasures 24 pages · 9.8 MB
12. Ch 12 · Beyond Earth 24 pages · 7.2 MB

NCERT's original ZIP (file names in code) · 74 MB · Saves as fecu1dd.zip

UPSC Prelims 2016–2026

No question since 2016 could be answered from it alone

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: General Science

Why read it

Two chapters matter for Prelims: chapter 12 (Earth, Moon and the Sun) answers 2 Geography questions, and chapter 2 one Science question.

Read chapters 2, 12 only

Chapters (open on phones)

1. Ch 1 · The Ever-Evolving World of Science optional 6 pages · 1.6 MB
2. Ch 2 · Exploring Substances: Acidic, Basic, and Neutral 16 pages · 3.3 MB 1 Prelims question · Test yourself →
3. Ch 3 · Electricity: Circuits and their Components optional 18 pages · 4.7 MB
4. Ch 4 · The World of Metals and Non-metals optional 16 pages · 3.6 MB
5. Ch 5 · Changes Around Us: Physical and Chemical optional 16 pages · 3.3 MB
6. Ch 6 · Adolescence: A Stage of Growth and Change optional 16 pages · 4.3 MB
7. Ch 7 · Heat Transfer in Nature optional 16 pages · 4.0 MB
8. Ch 8 · Measurement of Time and Motion optional 16 pages · 4.2 MB
9. Ch 9 · Life Processes in Animals optional 16 pages · 4.3 MB
10. Ch 10 · Life Processes in Plants optional 16 pages · 3.9 MB
11. Ch 11 · Light: Shadows and Reflections optional 16 pages · 4.5 MB
12. Ch 12 · Earth, Moon, and the Sun 20 pages · 5.3 MB 2 Prelims questions · Test yourself →

NCERT's original ZIP (file names in code) · 44 MB · Saves as gecu1dd.zip

UPSC Prelims 2016–2026

2 questions could be answered from this book · 1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: General Science

Why read it

Chapters 2 (microbes), 8 (matter, with air pollutants) and 13 (Earth) answer its 4 Environment and Science questions since 2016.

Read chapters 2, 8, 13 only

Chapters (open on phones)

1. Ch 1 · Exploring the Investigative World of Science optional 7 pages · 1.7 MB
2. Ch 2 · The Invisible Living World: Beyond Our Naked Eye 20 pages · 4.2 MB 2 Prelims questions · Test yourself →
3. Ch 3 · Health: The Ultimate Treasure optional 18 pages · 4.3 MB
4. Ch 4 · Electricity: Magnetic and Heating Effects optional 16 pages · 3.5 MB
5. Ch 5 · Exploring Forces optional 18 pages · 3.6 MB
6. Ch 6 · Pressure, Winds, Storms, and Cyclones optional 18 pages · 4.5 MB
7. Ch 7 · Particulate Nature of Matter optional 18 pages · 4.3 MB
8. Ch 8 · Nature of Matter: Elements, Compounds, and Mixtures 18 pages · 3.4 MB 1 Prelims question · Test yourself →
9. Ch 9 · The Amazing World of Solutes, Solvents, and Solutions optional 18 pages · 3.4 MB
10. Ch 10 · Light: Mirrors and Lenses optional 18 pages · 3.6 MB
11. Ch 11 · Keeping Time with the Skies optional 20 pages · 3.2 MB
12. Ch 12 · How Nature Works in Harmony optional 20 pages · 5.2 MB
13. Ch 13 · Our Home: Earth, a Unique Life Sustaining Planet 19 pages · 5.8 MB 1 Prelims question · Test yourself →

NCERT's original ZIP (file names in code) · 48 MB · Saves as hecu1dd.zip

UPSC Prelims 2016–2026

4 Environment and Science questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: General Science

Why read it

Chapters 2, 12 and 13 — cells, the diversity of life, and Earth as a system — answer its 6 Environment and Science questions since 2016.

Read chapters 2, 12, 13 only

Chapters (open on phones)

1. Ch 1 · Exploration: Entering the World of Secondary Science optional 7 pages · 3.6 MB
2. Ch 2 · Cell: The Building Block of Life 20 pages · 11 MB 1 Prelims question · Test yourself →
3. Ch 3 · Tissues in Action optional 20 pages · 14 MB
4. Ch 4 · Describing Motion Around Us optional 24 pages · 7.4 MB
5. Ch 5 · Exploring Mixtures and their Separation optional 22 pages · 12 MB
6. Ch 6 · How Forces Affect Motion optional 22 pages · 7.4 MB
7. Ch 7 · Work, Energy, and Simple Machines optional 24 pages · 7.7 MB
8. Ch 8 · Journey Inside the Atom optional 22 pages · 5.8 MB
9. Ch 9 · Atomic Foundations of Matter optional 22 pages · 6.8 MB
10. Ch 10 · Sound Waves: Characteristics and Applications optional 24 pages · 14 MB
11. Ch 11 · Reproduction: How Life Continues optional 20 pages · 11 MB
12. Ch 12 · Patterns in Life: Diversity and Classification 24 pages · 16 MB 3 Prelims questions · Test yourself →
13. Ch 13 · Earth as a System: Energy, Matter, and Life 21 pages · 15 MB 3 Prelims questions · Test yourself →

NCERT's original ZIP (file names in code) · 124 MB · Saves as iesc1dd.zip Large file (141 MB). On mobile data, download chapter by chapter.

UPSC Prelims 2016–2026

1 question could be answered from this book · 6 Environment and Science questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: General Science

Why read it

Since 2016 one Prelims question has drawn on this book, and only for a basic fact in chapter 4: water is made of hydrogen and oxygen. Skip it for Prelims unless you want to refresh school science.

Chapters (open on phones)

1. Ch 1 · Chemical Reactions and Equations 16 pages · 4.2 MB
2. Ch 2 · Acids, Bases and Salts 20 pages · 4.0 MB
3. Ch 3 · Metals and Non-metals 21 pages · 2.9 MB
4. Ch 4 · Carbon and its Compounds 21 pages · 12 MB 1 Prelims question · Test yourself →
5. Ch 5 · Life Processes 21 pages · 9.0 MB
6. Ch 6 · Control and Coordination 13 pages · 2.4 MB
7. Ch 7 · How do Organisms Reproduce? 15 pages · 4.1 MB
8. Ch 8 · Heredity 6 pages · 18 MB
9. Ch 9 · Light – Reflection and Refraction 27 pages · 2.7 MB
10. Ch 10 · The Human Eye and the Colourful World 10 pages · 1.7 MB
11. Ch 11 · Electricity 24 pages · 2.6 MB
12. Ch 12 · Magnetic Effects of Electric Current 13 pages · 2.2 MB
13. Ch 13 · Our Environment 10 pages · 4.2 MB

NCERT's original ZIP (file names in code) · 71 MB · Saves as jesc1dd.zip

UPSC Prelims 2016–2026

1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Prelims: General Science

Why read it

One book for history, geography, civics and economics. Start here only if your school basics are weak.

Chapters (open on phones)

1. Ch 1 · Locating Places on the Earth 26 pages · 14 MB 1 Prelims question · Test yourself →
2. Ch 2 · Oceans and Continents 14 pages · 9.5 MB
3. Ch 3 · Landforms and Life 18 pages · 25 MB
4. Ch 4 · Timeline and Sources of History 16 pages · 13 MB
5. Ch 5 · India, That Is Bharat 10 pages · 16 MB
6. Ch 6 · The Beginnings of Indian Civilisation 20 pages · 5.1 MB
7. Ch 7 · India's Cultural Roots 20 pages · 28 MB
8. Ch 8 · Unity in Diversity, or 'Many in the One' 12 pages · 15 MB
9. Ch 9 · Family and Community 12 pages · 15 MB
10. Ch 10 · Grassroots Democracy — Part 1: Governance 14 pages · 8.1 MB
11. Ch 11 · Grassroots Democracy — Part 2: Local Government in Rural Areas 10 pages · 8.1 MB
12. Ch 12 · Grassroots Democracy — Part 3: Local Government in Urban Areas 10 pages · 12 MB
13. Ch 13 · The Value of Work 12 pages · 11 MB
14. Ch 14 · Economic Activities Around Us 14 pages · 18 MB

NCERT's original ZIP (file names in code) · 211 MB · Saves as fees1dd.zip Large file (228 MB). On mobile data, download chapter by chapter.

UPSC Prelims 2016–2026

1 question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Foundation for GS I, II and III

Why read it

Its chapter on the rise of empires answered 2 Prelims questions.

Chapters (open on phones)

1. Ch 1 · Geographical Diversity of India 26 pages · 7.1 MB 1 Prelims question · Test yourself →
2. Ch 2 · Understanding the Weather 18 pages · 4.2 MB
3. Ch 3 · Climates of India 22 pages · 12 MB
4. Ch 4 · New Beginnings: Cities and States 16 pages · 4.1 MB
5. Ch 5 · The Rise of Empires 34 pages · 8.6 MB 2 Prelims questions · Test yourself →
6. Ch 6 · The Age of Reorganisation 28 pages · 8.8 MB
7. Ch 7 · The Gupta Era: An Age of Tireless Creativity 22 pages · 6.2 MB 1 Prelims question · Test yourself →
8. Ch 8 · How the Land Becomes Sacred 18 pages · 3.7 MB
9. Ch 9 · From the Rulers to the Ruled: Types of Governments 24 pages · 4.1 MB
10. Ch 10 · The Constitution of India — An Introduction 20 pages · 5.5 MB 1 Prelims question · Test yourself →
11. Ch 11 · From Barter to Money 18 pages · 3.2 MB 1 Prelims question · Test yourself →
12. Ch 12 · Understanding Markets 26 pages · 9.3 MB

NCERT's original ZIP (file names in code) · 83 MB · Saves as gees1dd.zip

UPSC Prelims 2016–2026

6 questions could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Foundation for GS I, II and III

Why read it

Its two chapters on the 6th–12th centuries answered 5 Prelims questions — a period the Class 12 Themes books cover only in parts.

Chapters (open on phones)

1. Ch 1 · The Story of Indian Farming 28 pages · 4.5 MB 2 Prelims questions · Test yourself →
2. Ch 2 · India and Her Neighbours 32 pages · 6.7 MB
3. Ch 3 · Empires and Kingdoms: 6th to 10th Centuries 36 pages · 6.1 MB 2 Prelims questions · Test yourself →
4. Ch 4 · Turning Tides: 11th and 12th Centuries 28 pages · 5.8 MB 3 Prelims questions · Test yourself →
5. Ch 5 · India, a Home to Many 18 pages · 3.3 MB
6. Ch 6 · The State, the Government, and You 26 pages · 3.9 MB
7. Ch 7 · Infrastructure: Engine of India's Development 24 pages · 8.4 MB
8. Ch 8 · Banks and the Magic of Finance 20 pages · 3.9 MB

NCERT's original ZIP (file names in code) · 49 MB · Saves as gees2dd.zip

UPSC Prelims 2016–2026

6 questions could be answered from this book · 1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Foundation for GS I, II and III

Why read it

A readable bridge from medieval to colonial India before the Class 12 books.

Chapters (open on phones)

1. Ch 1 · Natural Resources and Their Use 20 pages · 5.7 MB 1 Prelims question · Test yourself →
2. Ch 2 · Reshaping India's Political Map 40 pages · 10 MB 1 Prelims question · Test yourself →
3. Ch 3 · The Rise of the Marathas 22 pages · 5.4 MB 1 Prelims question · Test yourself →
4. Ch 4 · The Colonial Era in India 34 pages · 6.2 MB
5. Ch 5 · Universal Franchise and India's Electoral System 22 pages · 4.3 MB
6. Ch 6 · The Parliamentary System: Legislature and Executive 24 pages · 3.5 MB
7. Ch 7 · Factors of Production 32 pages · 8.9 MB 1 Prelims question · Test yourself →

NCERT's original ZIP (file names in code) · 48 MB · Saves as hees1dd.zip

UPSC Prelims 2016–2026

3 questions could be answered from this book · 1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Foundation for GS I, II and III

Why read it

Its freedom-struggle chapter answered 7 Prelims questions — the most of any history chapter in any NCERT on this list. English only for now: NCERT has not yet published the Hindi edition.

Chapters (open on phones)

1. Ch 1 · World Geography: Some Glimpses 34 pages · 8.2 MB
2. Ch 2 · India's Long Road to Independence 50 pages · 5.4 MB 7 Prelims questions · Test yourself →
3. Ch 3 · A Journey Through Indian Architecture 40 pages · 9.2 MB
4. Ch 4 · The Role of the Judiciary in Our Society 18 pages · 3.5 MB 2 Prelims questions · Test yourself →
5. Ch 5 · Citizenship: Rights and Duties 24 pages · 6.1 MB
6. Ch 6 · Dynamics of Population 24 pages · 4.1 MB
7. Ch 7 · India's Urban Landscape 24 pages · 4.8 MB
8. Ch 8 · Cultural Currents: 13th to 17th Centuries 35 pages · 5.8 MB

NCERT's original ZIP (file names in code) · 50 MB · Saves as hees2dd.zip

UPSC Prelims 2016–2026

8 questions could be answered from this book · 1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Foundation for GS I, II and III

Why read it

Its chapter on state and society up to 1000 CE answered 4 Prelims questions. English only for now: NCERT has not yet published the Hindi edition.

Chapters (open on phones)

1. Ch 1 · Understanding Social Science 12 pages · 2.1 MB
2. Ch 2 · Shaping of the Earth's Surface 26 pages · 21 MB
3. Ch 3 · Atmosphere and Climate 22 pages · 16 MB
4. Ch 4 · Early Humans and Beginning of Civilisation 34 pages · 8.8 MB 2 Prelims questions · Test yourself →
5. Ch 5 · State and Society up to 1000 CE 42 pages · 6.1 MB 5 Prelims questions · Test yourself →
6. Ch 6 · Democracy 24 pages · 2.5 MB 2 Prelims questions · Test yourself →
7. Ch 7 · Elections 22 pages · 2.7 MB 1 Prelims question · Test yourself →
8. Ch 8 · Building Blocks in Economics: The Problem of Choice 12 pages · 1.5 MB
9. Ch 9 · The Price Puzzle: What Drives the Market 26 pages · 7.6 MB

NCERT's original ZIP (file names in code) · 71 MB · Saves as iest1dd.zip

UPSC Prelims 2016–2026

8 questions could be answered from this book · 1 Environment or Science question could be answered from this book

2026 answers follow UPSC's provisional answer key.

Where it helps

• Foundation for GS I, II and III