BharatNotes The optional contributes 500 of 1,750 Mains marks across two papers of 250 marks each. PSIR, Sociology, Anthropology, Geography and History are consistently popular. The right choice depends on your academic background, interest, syllabus overlap with GS, and availability of mentorship.
Why Optional Selection Matters
UPSC Mains has 48 optional subjects (25 core + 23 literature subjects). The optional comprises 2 papers of 250 marks each = 500 marks out of a total of 1,750 Mains marks — roughly 29% of your written score.
2024 Topper Trends
| Topper | AIR | Optional | Optional Score |
|---|---|---|---|
| Shakti Dubey | 1 (CSE 2024) | PSIR | 279 / 500 |
| Aditya Srivastava | 1 (CSE 2023) | Electrical Engineering | 308 / 500 |
In CSE 2024, PSIR was among the most chosen optionals among top rankers. Historically, PSIR, Sociology, Anthropology, Geography and History have maintained consistent success rates.
How to Choose
Step 1 — Assess Background and Genuine Interest
Subjects aligned with your undergraduate degree give a head start — but are not mandatory.
Step 2 — Evaluate Syllabus Overlap with GS
- PSIR overlaps heavily with GS2 (Polity, Governance, IR)
- Geography overlaps with GS1 and GS3
- Sociology overlaps with GS1 (Society) and GS2 (Social Justice)
- Public Administration overlaps with GS2 and GS4
- History overlaps with GS1
High overlap means you prepare both GS and optional together, saving time.
Step 3 — Evaluate Practicalities
- Material availability: Is quality study material easily available?
- Mentorship: Is there an active community or coaching for this subject?
- Answer format: Some subjects (Anthropology) require diagrams; others (Philosophy) need dense reasoning.
Step 4 — Read 1–2 Chapters and Past Papers
Before finalising, read a chapter from the subject's standard text and review the last 5 years of PYQs. If the questions feel engaging rather than burdensome, that is a positive signal.
