Hi

Your profile suggests that your qualification is 12th commerce so I am guessing that you want to ask which subject you should choose for your graduation.

Actually, You can choose any subject or course like  bcom,BA , BBA etc based on your interest for your graduation/degree

This is because,

to be eligible for UPSC  examination there is no compulsion to be a graduate in a particular subject, all you need to be eligible is that :-

You should be a graduate in any discipline and 21- 32 years old . You can check upsc eligibility criteria at https://competition.careers360.com/articles/upsc-ias-eligibility-criteria/amp

But yes ,

When it comes to upsc preparation and if you are totally focused towards it  then ,

choosing BA can be really helpful for your UPSC  examination, this is because in BA you will be learning subjects like history , polity etc which are a part of the UPSC syllabus so it will help you in your upsc examination

Some of the best graduation courses regarding upsc are :-

----------)  BA Public Administration –   Highly relevant,  it has compact syllabus, it has a lot of overlaps with your polity & governance part in your GS II.

----------)  Ba     Sociology – it's   study of society, lots of material are useful  in GS I, Essay, in Ethics paper as well.

----------)   BA     History   – useful for prelims and your GS I.

----------)   BA Geography   -relevant for both prelims and GS

----------)  BA Political Science   – relevant for both prelims and GS II

Some other options are are BA Economics,BA Philosophy etc.

So, take your time and decide .

To help you further, here's a brief of your UPSC examination pattern

Your UPSC civil services examination consists of three stages

********prelims exam :- it is objective paper and is of qualifying nature , so you just  need to at least qualify it to be eligible for mains examination, the score /marks obtained by you in your prelims examination is not added up or used in your final merit. Your prelims exam consist of 2 papers: -

-----) general studies  1

-----) general studies II ( csat )

You get 2 hours for each paper

********Mains exam. :- it is descriptive /written examination . There are a total of 9 papers  which are listed below:-

-----) compulsory indian language.

-----) english

-----) essay

-----) general studies I

-----) general studies II

-----) general studies III

-----) general studies IV

-----) optional I

-----) optional II

The compulsory indian language and english are qualifying in nature . You just need to qualify them. The marks obtained by you in these two papers will not be counted towards merit list.

*********Interview :- After qualifying mains, you have to go through interview round, and it is more of test of your personality rather than knowledge.

For detail examination pattern check out :- https://competition.careers360.com/articles/upsc-ias-exam-pattern

Thank you