UPSC's rules
- One optional subject, two papers (Paper VI and VII), 250 marks each, three hours each.
- You can write it in English or any Eighth Schedule language, like the other Mains papers.
- For a literature optional, you may be required to answer some or all questions in that language.
Source: UPSC Exam Notice 05/2026-CSP ↗
Five questions to decide
- 1. Does it interest you?
You will study it daily for a year or more. Depth comes naturally in a subject you enjoy reading.
- 2. Does your background help?
Your graduation subject saves time, but only if you are at ease in it; don't choose it just for the degree.
- 3. How big is the syllabus, and how much time do you have?
Read the subject's full official syllabus and estimate honestly how many months it needs to cover and revise.
- 4. Does it help in GS?
A subject that overlaps GS gives double value, but don't take a subject you find hard for that reason alone.
- 5. Is there good material and guidance in your medium?
If you write in Hindi or another language, check that reliable material and answer evaluation exist in that language.
Before deciding, read the full syllabus and the last three years' papers of two or three shortlisted subjects. Most students know their answer after that exercise.
Choosing an optional in Hindi medium
Every optional can be written in Hindi, so the real question is support: can you find good material, model answers and someone to evaluate your answers in Hindi? Before you decide, read the subject's past papers in UPSC's Hindi and check that its terms read naturally to you. Hindi-medium guide →
Where an optional overlaps GS
| Optional | GS paper | Where |
|---|---|---|
| Anthropology | GS 1 | Indian society, tribes and diversity in GS I |
| Economics | GS 3 | the Indian economy, growth and budgeting in GS III |
| Geography | GS 1, GS 3 | physical and human geography in GS I; environment and disasters in GS III |
| History | GS 1 | Indian culture, modern India and world history in GS I |
| Law | GS 2 | the Constitution, federalism and institutions in GS II |
| Management | GS 4 | organisational ethics and governance in GS IV |
| Philosophy | GS 4 | moral thinkers and ethics in GS IV |
| Political Science and International Relations | GS 2 | polity, governance and international relations in GS II |
| Psychology | GS 4 | attitude, aptitude and emotional intelligence in GS IV |
| Public Administration | GS 2, GS 4 | governance and civil services in GS II; probity in GS IV |
| Sociology | GS 1 | Indian society, social issues and globalisation in GS I |
| Agriculture | GS 3 | crops, irrigation, MSP and food processing in GS III |
| Commerce and Accountancy | GS 3 | the economy and budgeting in GS III |
| Zoology | GS 3 | biodiversity and conservation in GS III |
| Botany | GS 3 | biodiversity, biotechnology and conservation in GS III |
| Medical Science | GS 2, GS 3 | health policy in GS II; science and technology in GS III |
Our reading of where each syllabus meets the GS papers.
All 48 optionals
Humanities & social sciences · 9
Sciences, agriculture & medicine · 10
Engineering · 3
Commerce, management & law · 3
Literature of languages · 23
Each links to UPSC's full official syllabus for the subject.
Take the next step
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Mains answers · read by a mentor
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Quick answers
How many optional subjects are there in UPSC?
48: 25 subjects and 23 literatures of languages. You choose one, which has two papers of 250 marks each.
Which is the best optional for UPSC?
There is no single best optional. The right one is the subject you enjoy, whose syllabus you can finish in time, and for which you can get good material and answer evaluation in your medium.
How much does the optional count?
Two papers, 500 marks: 28.6% of the 1,750 written marks in Mains, the largest single block in the final merit of 2,025.
Do literature optionals have to be answered in that language?
UPSC's notice says a candidate may be required to answer some or all questions in the language concerned.
When should I choose my optional?
Once your base is in place, usually by month four or five of preparation, after reading the full syllabus and past papers of two or three subjects.
How many optional subjects do we have to choose for UPSC?
Just one. It has two papers, Paper VI and Paper VII, of 250 marks each.
Which optional is good for Hindi medium?
Any of the 48 can be written in Hindi. Choose one where you can find reliable material and answer evaluation in Hindi; literature of Hindi is an option, but take it only if you enjoy literature, since it needs answers in Hindi.
Rules from UPSC's notice; the GS overlap is our own reading of the syllabi.
