Dear aspirant, hope you are doing well.

Eligibility criteria for upsc exam is to complete ug course like, bsc, bba, b. Com, from Recognised university / college.

For further details you can visit the site. Link is given below.

https://competition.careers360.com/exams/upsc-civil-services-exam/amp

You can chose option subject in the Mains examination, the candidate is to choose one Optional Subject from the UPSC list of 26 Optional Subjects. Each Optional Subject has two papers of 250 Marks each thereby making about 30% of Mains Exam

• Agriculture
• Anthropology
• Chemistry
• Accounts
• Electrical Engineering
• Geology
• Law
• Mathematics
• Medical Science
• Physics
• Psychology
• Sociology
• Animal Husbandry
• Botany
• Civil Engineering
• Economics
• Geography
• History
• Management
• Mechanical Engineering
• Philosophy
• Political  Science
• Public Administration
• Statistics
• Zoology

Thank you

For more details, about syllabus, interview, book. Visit the site

https://competition.careers360.com/exams/upsc-civil-services-exam/amp

Hii aspirant

There are two sets of optional subjects,one is related to course and other related to literature.There are 25 optional subjects and 23 literature based

They are

OPTIONAL SUBJECTS IN UPSC

• Agriculture

• Animal Husbandry and Veterinary Science

• Anthropology

• Botany

• Chemistry

• Civil Engineering

• Commerce & Accountancy

• Economics

• Electrical Engineering

• Geography

• Geology

• History

• Law

• Management

• Mathematics

• Mechanical Engineering

• Medical Science

• Philosophy

• Physics

• Political Science & International Relations

• Psychology

• Public Administration

• Sociology

• Statistics

• Zoology

OPTIONAL LITERATURE LANGUAGES ARE:

• Assamese

• Bengali

• Bodo

• Dogri

• Gujarati

• Hindi

• Kannada

• Kashmiri

• Konkani

• Maithili

• Malayalam

• Manipuri

• Marathi

• Nepali

• Oriya

• Punjabi

• Sanskrit

• Santhala

• Sindhi

• Tamil

• Telugu

• Urdu

• English

• Please be cautious while selecting optional subjects as they are key for your scoring .Hope it helps
  
  
  
  

Hello Aspirant,

The optional subjects for UPSC mains in general, are up to 25, these include, law, anthropology, agriculture, animal husbandry, botany, chemistry, civil engineering, commerce & accountancy, economics, electrical engineering, geography, geology, history, management, mathematics, mechanical engineering, medical science, philosophy, physics, psychology, public administration, political science, sociology, statistics, and zoology, also you can opt for an optional subject in literature, in any of 22 languages recognized in India.

Hope this might help you,

Good Luck, Thank you :)