The master content hub · UPSC CSE 2026
UPSC Study Notes & Guides
The complete index of what we teach — seven GS subjects, two Mains-only papers, PSIR and Law optionals, and every exam-essentials strategy page. Each card links to a dedicated pillar with topic notes, guides, and current affairs.
Prelims + Mains core
General Studies
Seven subjects. Prelims fact recall on one side, Mains answer depth on the other. Each hub rolls up topic notes, guides, and current affairs tagged to that subject.
Indian Polity235
GS-II foundation, Laxmikanth & beyond
Open hub →Indian Economy376
GS-III macro & micro economics
Open hub →Geography130
Physical, human & Indian geography
Open hub →Indian History110
Ancient, medieval & modern India
Open hub →Environment & Ecology240
Biodiversity, climate & conservation
Open hub →Science & Technology
Space, biotech, IT & defence
Open hub →International Relations162
India & the world, bilateral ties
Open hub →Mains-only papers
Mains Only
Two papers that only show up in Mains — and two places most aspirants underprepare. We fix that here.
Optional papers
Optionals
The paper that decides final ranks more often than anyone admits. Complete treatment for PSIR and Law, paper-by-paper.
PSIR Optional3
Complete PSIR guide & resources
Open hub →PSIR Paper 1
Political theory & Indian politics
Open hub →PSIR Paper 2
Comparative & international politics
Open hub →PSIR Booklist
Books, strategy & approach
Open hub →PSIR PYQs
Previous year question analysis
Open hub →Law Optional
Strategy, toppers & PYQs
Open hub →Strategy & logistics
Exam Essentials
Start here if you're new. Come back here when you need a tactical refresh — syllabus, pattern, answer writing, essay, CSAT, interview.
UPSC Syllabus
Complete Prelims & Mains syllabus
Open hub →Exam Pattern
Stages, marks & eligibility
Open hub →Mains Answer Writing
Structure, practice & tips
Open hub →Essay Strategy12
Framework & top-scoring essays
Open hub →CSAT Preparation12
Paper II aptitude & reasoning
Open hub →Interview Preparation
Personality test guidance
Open hub →Start Here
Zero-to-aspirant beginner guide
Open hub →Free Resources
Notes, PYQs & study material
Open hub →Just published
Latest guides
The newest strategy pieces and how-to walkthroughs — picked from the Study Guides category.
Not sure where to begin? Sit in a free demo class.
No sales call. No brochure. Watch a live GS session taught by ex-Rau's IAS faculty — then pick your starting pillar.
