UPSC Mains
48 Optionals
500 Marks
UPSC Optional Subjects List 2027: All 48 Subjects, Popular Choices and How to Choose
UPSC offers 48 optional subjects for the Mains: 25 academic subjects and the literature of 23 languages. The optional carries 500 marks.
TOTAL OPTIONALS
48
MARKS
2 papers × 250 = 500
CHOICE
Any, regardless of degree
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Quick Answer
UPSC offers 48 optional subjects in the Civil Services Mains: 25 academic subjects and the literature of 23 languages. A candidate picks one, which carries two papers of 250 marks each, or 500 of the 1,750 Mains marks. You can choose any optional, whatever your graduation subject. The most commonly chosen are PSIR, Sociology, Anthropology, Geography, History and Public Administration.
Last updated: 26 October 2026 · Official source: upsc.gov.in. Dates from the UPSC calendar are tentative and can change; always confirm on the official website.
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Full List of UPSC Optional Subjects
| Group | Subjects |
|---|---|
| Humanities & social sciences | Anthropology, Economics, Geography, History, Law, Philosophy, Political Science & International Relations, Psychology, Public Administration, Sociology |
| Sciences | Botany, Chemistry, Geology, Mathematics, Physics, Statistics, Zoology |
| Engineering | Civil Engineering, Electrical Engineering, Mechanical Engineering |
| Medicine & agriculture | Medical Science, Agriculture, Animal Husbandry & Veterinary Science |
| Commerce & management | Commerce & Accountancy, Management |
| Literature (23) | Assamese, Bengali, Bodo, Dogri, English, Gujarati, Hindi, Kannada, Kashmiri, Konkani, Maithili, Malayalam, Manipuri, Marathi, Nepali, Odia, Punjabi, Sanskrit, Santhali, Sindhi, Tamil, Telugu, Urdu |
Note: A literature optional can be taken even if your graduation was in another subject, but you should be able to read and write that language well.
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Popular Optionals and Their Overlap with GS
| Optional | Overlap with GS | Good fit for |
|---|---|---|
| Political Science & IR (PSIR) | GS II (polity, IR), Essay | Those interested in politics and current affairs |
| Sociology | GS I (society), Essay, Ethics | Short syllabus; any background |
| Anthropology | GS I (society) partly | Science and medical graduates |
| Geography | GS I, Prelims, disaster management | Those good with maps and diagrams |
| History | GS I, Prelims | Those who enjoy reading; long syllabus |
| Public Administration | GS II, GS IV | Those interested in governance |
| Odia Literature | Essay (language skill) | Odisha aspirants with strong Odia; also offered in OPSC |
On success rates: UPSC has not published recent optional-wise data. Older official figures show the popular optionals close to the overall average of about 8% of candidates selected. No optional is “the best” for everyone; your interest and consistency matter more.
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How to Choose Your Optional
- Interest first: You will study it for 12–18 months. Read a few chapters before deciding.
- Background: A subject from your degree saves time, but it is not required.
- Overlap with GS: Optionals like PSIR, Sociology and Geography also help in GS and the Essay.
- Syllabus length: Compare the size of both papers; some (Sociology, Anthropology) are shorter than others (History).
- Past papers: Read the last five years of question papers for your shortlisted optionals.
- Material and guidance: Check that good books, notes and test series are available, in your language if needed.
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When to Start the Optional
- Ideal: Finish the first reading of the optional before the Prelims year starts, because there are under three months between the Prelims and the Mains.
- For Prelims 2027: If you have not started, pick your optional by December 2026 and give it 1–2 hours a day until February, then pause for Prelims revision.
- After Prelims: Revise the optional and practise answer writing intensively.
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Frequently Asked Questions
How many optional subjects are there in UPSC?
48: 25 academic subjects and the literature of 23 languages.
Can I choose an optional different from my graduation subject?
Yes. Any candidate can choose any of the 48 optionals.
Which is the most popular optional in UPSC?
PSIR, Sociology, Anthropology and Geography are the most commonly chosen in recent years.
Is Odia Literature available as a UPSC optional?
Yes. Odia is one of the 23 literature optionals, and it is also offered in the OPSC OAS Mains.
How many marks does the UPSC optional carry?
500 marks in two papers of 250 each, out of 1,750 Mains marks.
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Related Resources on Strive Edge IAS
- Full syllabus: UPSC Syllabus 2027
- Exam structure: UPSC Exam Pattern 2027
- CSE 2027 essentials: UPSC Notification 2027, UPSC Calendar 2027, UPSC Syllabus 2027 and UPSC Eligibility 2027
- Daily practice: Daily Current Affairs, Prelims Pinpointer and Mains Answer Writing
- Previous papers: UPSC Prelims PYQs and UPSC Mains PYQs
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Source: UPSC Civil Services Examination rules (upsc.gov.in). Compiled by the Strive Edge IAS editorial team.
