Best Optional Subject for UPSC — How to Choose
Choose the best UPSC optional subject with this data-driven guide covering scoring trends, overlap with GS, and subject-wise success rates.
Choosing the right optional subject for UPSC Mains can make or break your rank. The optional contributes 500 marks out of 1750 in Mains — nearly 29% of your total score. This guide from ExamHub helps you make a data-driven decision.
List of UPSC Optional Subjects
UPSC offers 48 optional subjects across Literature and non-Literature categories. Here are the most popular ones with their scoring trends:
| Optional Subject | Average Score (Top 50) | Overlap with GS | Popularity |
|---|---|---|---|
| Anthropology | 290-310 | Medium | Very High |
| Sociology | 280-300 | High | Very High |
| Geography | 280-310 | Very High | High |
| Public Administration | 270-290 | Very High | High |
| History | 280-300 | High | Medium |
| Political Science | 270-290 | High | Medium |
| Philosophy | 280-310 | Medium (Ethics) | Medium |
| Psychology | 290-320 | Low | Medium |
| Mathematics | 280-330 | None | Low-Medium |
| Medical Science | 280-310 | Low | Low |
How to Choose Your Optional Subject
Follow these five criteria to narrow down your choice:
- Genuine interest — You will study this subject for 6-12 months; pick something you enjoy reading
- Overlap with General Studies — Subjects like Geography, Sociology, and Public Administration save preparation time
- Scoring potential — Check average scores of toppers with that optional over the last 5 years
- Availability of resources — Ensure quality books, notes, and free YouTube lectures are available
- Your academic background — Prior exposure gives a natural advantage, though many toppers choose new subjects
Top 5 Optional Subjects — Detailed Analysis
1. Anthropology
Anthropology is one of the most popular optionals due to its concise syllabus and high scoring potential. The syllabus is compact — you can cover it in 3-4 months.
Pros: Short syllabus, predictable questions, moderate overlap with GS-I (society topics) Cons: Scoring has become slightly unpredictable in recent years, limited resources Best for: Candidates who want a compact optional that does not require extensive background knowledge2. Sociology
Sociology has strong overlap with GS-I (Indian Society) and GS-II (Social Issues). It is among the most chosen optionals.
Pros: Excellent GS overlap, plenty of free resources, relatable content Cons: Answers need sociological perspective (not just general knowledge), competition is high Best for: Candidates interested in social issues, inequality, and development3. Geography
Geography offers the highest overlap with General Studies — it connects with GS-I (Geography), GS-III (Environment, Disaster Management), and even Prelims.
Pros: Maximum GS overlap, map-based questions are scoring, diagram-oriented Cons: Syllabus is vast, requires practice with map-based answers Best for: Candidates who enjoy maps, diagrams, and spatial understanding4. Public Administration
Pub Ad has direct relevance to the career you are preparing for. It overlaps with GS-II (Governance) and GS-IV (Ethics in Administration).
Pros: Directly relevant to civil services, strong GS-II overlap Cons: Scoring has declined in recent years, answers need administrative perspective Best for: Candidates who enjoy governance, policy analysis, and administrative theory5. Philosophy
Philosophy is gaining popularity due to its compact syllabus and overlap with GS-IV (Ethics). It can be covered in 2-3 months.
Pros: Very short syllabus, strong Ethics overlap, high scoring potential Cons: Abstract thinking required, fewer toppers to reference Best for: Candidates who enjoy abstract thinking and have strong writing skillsSubjects to Be Cautious About
- Literature optionals — Scoring is subjective and unpredictable
- Law — Vast syllabus with inconsistent scoring
- Engineering subjects — Fewer aspirants means less community support
- Agriculture — Good for agriculture graduates but very limited resources
Common Mistakes in Optional Selection
- Choosing based solely on someone else's success — What worked for a topper may not work for you
- Switching optionals midway — Commit to one and stick with it
- Ignoring the syllabus depth — Read the full syllabus before deciding, not just topic headings
- Not attempting a test paper — Try writing answers in your shortlisted optional before finalizing
Free Resources for Optional Preparation
- NCERT textbooks — Foundation for many optionals (available at ncert.nic.in)
- IGNOU study materials — Excellent for Sociology, Public Administration, Political Science, and History
- YouTube channels — Many educators offer free optional lectures
- Previous year papers — Download from MyPDF and analyze question patterns
Frequently Asked Questions
Can I change my optional subject after one attempt?
Yes, UPSC allows you to change your optional subject between attempts. However, this means starting preparation from scratch for that subject. Change only if your current optional is consistently yielding low scores despite good preparation.
Which optional subject has the shortest syllabus?
Anthropology and Philosophy have the shortest syllabi among popular optionals. Both can be covered in 2-4 months of dedicated study, leaving more time for GS preparation.
Does my graduation subject matter for optional selection?
Not necessarily. Many toppers choose optionals unrelated to their graduation. However, having a background in a subject gives you a head start and deeper understanding. Weigh this advantage against the other selection criteria.
Is Mathematics a good optional for non-math graduates?
Mathematics can be very high-scoring if you are strong in it, but it requires extensive practice. Non-math graduates typically need 8-10 months to prepare. Choose it only if you genuinely enjoy problem-solving and have at least undergraduate-level math skills.