UPSC Mains 2026: Complete Optional Notes — Geography, History, PSIR, Sociology. Download Now

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Geography
environment
Environment
science
Science & Tech
Indian Polity
Governance
Governance
Indian Economy
Indian Economy
Art and Culture
Ancient History
Medieval History
Modern History
Post-Independence
World History
International relations
International Relations
indian society
Indian Society
internal security
Internal Security
Social Justice
Social Justice
disaster management
Disaster Management
Ethics, Integrity & Aptitude
Agriculture
Biology
Biology
India
Indian Geography Mapping
world geography upsc globe
World Geography
Government Schemes
Government Schemes
Important Institutions
Important Institutions

UPSC Optional Notes
Geography Optional
Sociology Optional
History Optional
PSIR Optional Notes
PSIR Optional

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Geography

World Geography

Geography Mapping

Agriculture

Disaster Management

Ethics, Integrity & Aptitude

Governance

Indian Art and Culture

Indian Society

Internal Security

International Relations

Medieval Indian History

Post-Independence History

Science and Technology

Social Justice

World History

Prelims PYQs Solutions

UPSC PYQs

Geography Optional

Geography Optional Complete Notes (PDF)

History Optional

History Optional Complete Notes (PDF)

Sociology Optional

Sociology Optional Complete Notes (PDF)

PSIR Optional

PSIR Optional Complete Notes (PDF)

Prelims PYQs Solutions

Boost Your Prelims Score (by 20+ marks) through Prelims PYQs Research Notes.

Meticulously researched document of the previous year’s UPSC Prelims Subject-wise Solved Papers.

Geography

From 2025 to 2013

Environment

From 2025 to 2013

Science and Tech

From 2025 to 2013

Economy

From 2025 to 2013

Indian Polity

From 2025 to 2013

International R. (IR)

From 2025 to 2013

Indian History

From 2025 to 2013

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