Hello,

The minimum education eligibility to appear for UPSC Civil Service entrance is bachelor's degree in any discipline from a recognized board. So there isn't particular stream from which a candidate has to pass in 10+2 or bachelor's degree. So you have to choose a stream in 10+2 based on your interest. You need to pass in 10+2 or its equivalent from a recognized board. After that you need to take admission in bachelor's degree in any discipline from a recognized board. Here are some insights about UPSC Civil Services Entrance exam

• The exam is conducted in 3 stages namely Preliminary, Mains and Personality Test
• Preliminary exam is an objective pen and paper based exam
• Mains is a written exam with subjective questions
• Personality Test will be conducted in the form of Interview
• Preliminary  exam has two papers:- 1)General Studies Paper-I 2) General Studies Paper-II)
• Mains exam has Nine Papers

1. General Studies I
2. General Studies II
3. General Studies III
4. General Studies IV
5. Optional Subject Paper I
6. Optional Subject Paper II
7. Essay Paper
8. English Paper
9. Region language Paper

To know more about UPSC IAS you can read an article using the link below

https://competition.careers360.com/articles/upsc-ias