Preparing for the *UPSC Civil Services Examination with Political Science & International Relations (PSIR) as an Optional Subject* requires comprehensive coverage of Political Theory, Political Thought, Indian Government & Politics, International Relations and India’s Foreign Policy.

The *Shubhra Ranjan PSIR Postal Correspondence Notes 2026-27 – Set of 5 Books* is designed as a complete study resource for aspirants looking for structured and exam-oriented PSIR preparation. The five-volume set covers major areas of the UPSC PSIR Optional syllabus in a systematic manner.

## Why Choose Shubhra Ranjan PSIR Notes 2026-27?

These notes can help aspirants build conceptual clarity while simultaneously preparing for answer writing and revision. The content is organized around important themes and thinkers relevant to the PSIR Optional syllabus.

### Key Features

* Complete *5-book PSIR Postal Correspondence Notes set*
* Covers major areas of *Political Science & International Relations*
* Useful for *UPSC CSE PSIR Optional preparation*
* Exam-oriented and structured study material
* Focus on important political thinkers, theories and concepts
* Coverage of Indian Political Thought and Indian Politics
* Dedicated coverage of International Relations and Indian Foreign Policy
* Helpful for revision and answer-writing preparation
* Suitable for both foundational study and structured revision

## Volume-Wise Coverage

### Volume 1 – Western Political Thought & Political Ideologies

Volume 1 focuses on important Western political thinkers and major political ideologies. It includes thinkers such as:

* Plato
* Aristotle
* Machiavelli
* Thomas Hobbes
* John Locke
* Rousseau
* J. S. Mill
* Karl Marx
* Antonio Gramsci
* Hannah Arendt

The volume also covers important political ideologies including *Liberalism, Socialism, Marxism, Fascism, Neo-Marxism, Existentialism, Structuralism and Feminism*.

### Volume 2 – Indian Political Thought & Political Theory

Volume 2 focuses on important aspects of Indian Political Thought along with core Political Theory.

Major areas include:

* Dharmashastra
* Arthashastra
* Buddhist Political Thought
* Aurobindo
* Mahatma Gandhi
* M. N. Roy
* B. R. Ambedkar
* Syed Ahmed Khan
* Theory of State & Sovereignty
* Concept of Power
* Concept of Justice
* Equality
* Democracy
* Theory of Rights

### Volume 3 – Indian Government & Politics

Volume 3 provides coverage of Indian Government and Politics along with Comparative Politics.

Important areas include:

* Indian Nationalism
* Making of the Indian Constitution
* Salient Features of the Indian Constitution
* Principal Organs of the Union Government
* Principal Organs of State Governments
* Grassroots Democracy
* Statutory Institutions and Commissions
* Federalism
* Planning and Economic Development
* Caste, Religion and Ethnicity in Indian Politics
* Party System
* Social Movements
* Comparative Politics

### Volume 4 – International Relations & Indian Foreign Policy

Volume 4 focuses on major concepts and contemporary dimensions of International Relations and India’s Foreign Policy.

Key areas include:

* International Relations Theories
* Approaches to International Relations
* Changing International Political Order
* Key Concepts in IR
* India’s Foreign Policy and the World
* India–China Relations
* India Act East
* India–US Relations
* India–West Asia Relations
* India–Japan Relations
* India–Russia Relations

### Volume 5 – International Relations & Global Issues

Volume 5 expands the International Relations component with a focus on different regions, global institutions and contemporary global concerns.

Major areas include:

* Determinants of India’s Foreign Policy
* South Asia
* Global South
* Latin America
* Africa
* Contemporary Global Concerns
* United Nations
* European Union

## Who Can Benefit From These Notes?

The *Shubhra Ranjan PSIR Postal Correspondence Notes 2026-27* can be useful for:

* UPSC Civil Services aspirants choosing *PSIR Optional*
* Candidates preparing for UPSC Mains Optional Paper I and Paper II
* Aspirants looking for structured PSIR study material
* Students seeking a consolidated resource for revision
* Candidates preparing Political Science and International Relations systematically

## How to Use These Notes for PSIR Optional Preparation

For effective preparation, aspirants can combine the notes with the *UPSC syllabus and previous years’ questions (PYQs)*. First build conceptual understanding, then connect important thinkers and theories with contemporary examples. Regular answer-writing practice can further help in developing analytical and well-structured responses for the Mains examination.

## Complete 5-Book PSIR Study Set

The five-volume set provides broad coverage of the PSIR Optional syllabus, ranging from *Western Political Thought and Political Theory to Indian Politics, International Relations and India’s Foreign Policy*.

If you are preparing PSIR as your UPSC Optional Subject for the *2026-27 cycle*, this set can serve as a structured study and revision resource.

### Product Details

*Product Name:* Shubhra Ranjan PSIR Postal Correspondence Notes
*Edition:* 2026-27
*Subject:* Political Science & International Relations (PSIR)
*Set:* 5 Books
*Author/Institute:* Shubhra Ranjan
*Suitable For:* UPSC CSE PSIR Optional Preparation

## Order Online

Get the *Shubhra Ranjan PSIR Postal Correspondence Notes 2026-27 – Set of 5 Books* from *Notes India*

https://www.notesindia.in/product/shubhra-ranjan-ias-political-science-optional-handwritten-class-notes-7-booklets-set-2025-26-original-book