PSIR Syllabus Explained Topic-by-Topic — with 15-Year PYQ Frequency
Most aspirants read the PSIR syllabus as a list of topics. Examiners read it as a probability distribution. This post gives you the examiner's copy: every section weighted by what UPSC has actually asked — computed from the PYQ Map's 627 mapped questions and 9,405 marks, 2011–2025.
The ten chapters that carry the paper
- Ch 4 · Foundations of Democratic Governance — 689 marks across 13 of 15 years
- Ch 14 · Party System and Social Movement — 540 marks across 13 of 15 years
- Ch 36 · India's Relations with Global Powers — 530 marks across 11 of 15 years
- Ch 3 · Political Theories and Theories of State — 392 marks across 10 of 15 years
- Ch 9 · Salient Features of the Indian Constitution — 380 marks across 11 of 15 years
- Ch 23 · Key Concepts in International Relations — 379 marks across 10 of 15 years
- Ch 12 · Statutory Institutions/Commissions and Federalism — 372 marks across 10 of 15 years
- Ch 7 · Indian Political Thought — 345 marks across 10 of 15 years
- Ch 17 · Politics of Representation and Participation — 342 marks across 11 of 15 years
- Ch 1 · Western Political Thought — 340 marks across 11 of 15 years
How to read the distribution
Three rules fall out of the data. One — standing appointments. A chapter active in 10+ of 15 years (Foundations of Democratic Governance, Party System & Social Movements, India's Relations with Global Powers, Theories of the State) is asked essentially every year; it gets first claim on your calendar, not equal claim. Two — wide vs deep. Paper II-A carries more sub-topics than any other section (321 in our mapping) but spreads its marks thinner — cover it wide and shallow first, deep on the theory chapters second. Three — the cheap marks. The apparently "small" chapters (Power, Democracy) are small only in pages; their questions repeat as tight question-families, which makes them the highest marks-per-hour in the subject — see the question-family method.
From frequency to a study plan
Weight is not the same as difficulty. A high-weight, high-repetition chapter like Theories of the State is also the most learnable, because fifteen years of questions collapse into six families. A low-weight chapter asked once in a brutal phrasing can cost more preparation for fewer marks. Allocate hours to weight × repetition × learnability, in that order. The full unit-by-unit segregation with the complete topic-wise microlisting sits on the syllabus page; read the two side by side and the syllabus stops being a list and becomes a map with the marks drawn on it.
Prepare PSIR in the most efficient and optimised manner
Foundation 2026–27 · Answer-Writing Mentorship · 13-Test Series — taught and marked by Swetank Pandey at ALS IAS, Karol Bagh.