Optional subjects

In the Union Public Service Commission (UPSC) Civil Services Examination (CSE), candidates have the option to choose one optional subject for the Mains examination. The Mains examination consists of nine papers, and one of these papers is dedicated to the chosen optional subject.

UPSC offers a wide range of optional subjects for the Mains examination. Candidates can choose one optional subject from the following list:

  1. Agriculture
  2. Animal Husbandry and Veterinary Science
  3. Anthropology
  4. Botany
  5. Chemistry
  6. Civil Engineering
  7. Commerce and Accountancy
  8. Economics
  9. Electrical Engineering
  10. Geography
  11. Geology
  12. History
  13. Law
  14. Management
  15. Mathematics
  16. Mechanical Engineering
  17. Medical Science
  18. Philosophy
  19. Physics
  20. Political Science and International Relations
  21. Psychology
  22. Public Administration
  23. Sociology
  24. Statistics
  25. Zoology
Literature of any one of the following languages:

  • Assamese
  • Bengali
  • Bodo
  • Dogri
  • Gujarati
  • Hindi
  • Kannada
  • Kashmiri
  • Konkani
  • Maithili
  • Malayalam
  • Manipuri
  • Marathi
  • Nepali
  • Odia
  • Punjabi
  • Sanskrit
  • Santali
  • Sindhi
  • Tamil
  • Telugu
  • Urdu
  • English


Candidates are advised to choose their optional subject based on their interests, background, and the availability of study material and guidance. The optional subject carries 250 marks in the Mains examination and can significantly impact a candidate's final ranking. Therefore, it's important to make an informed and well-thought-out choice.