upscDetailed Syllabus

UPSC CSE 2026 Syllabus

Union Public Service Commission

Verified for Academic / Recruitment Year: 2026

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Complete UPSC IAS 2026 syllabus for Prelims and Mains. Includes optional subject list and essay paper details.

Subject-wise Detailed Topics

1Prelims Paper I — GS
7 Key Topics
History of IndiaIndian & World GeographyIndian Polity & GovernanceEconomic & Social DevelopmentEnvironment & EcologyGeneral ScienceCurrent Events
2Prelims Paper II — CSAT
7 Key Topics
ComprehensionLogical ReasoningAnalytical AbilityDecision MakingBasic NumeracyData InterpretationEnglish Language Comprehension
3Mains GS I
4 Key Topics
Indian Heritage & CultureHistoryGeography of the WorldSociety
4Mains GS II
5 Key Topics
GovernanceConstitutionPolitySocial JusticeInternational Relations
5Mains GS III
6 Key Topics
TechnologyEconomic DevelopmentBiodiversityEnvironmentSecurityDisaster Management
6Mains GS IV
4 Key Topics
EthicsIntegrityAptitudeCase Studies

Recommended Syllabus Preparation Strategy

  • ✓Concept Clarity First: Cover fundamental concepts from standard NCERT and reference textbooks before attempting advanced shortcuts.
  • ✓Weightage-Based Allocation: Prioritize high-frequency modules that appear consistently across previous 5-year question papers.
  • ✓Timed Sectional Practice: Simulate real CBT exam conditions to develop speed and accuracy while managing negative marking penalties.
  • ✓Weekly Revision Cycles: Maintain short summary formula sheets and current affairs notes for rapid weekend revisions.
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