Hi

You can choose any subject or course  of your choice based on your interest for your graduation after your 12th

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  , so you are free to do 10+2 and graduation in any subject.You can check upsc eligibility criteria at https://competition.careers360.com/articles/upsc-ias-eligibility-criteria/amp

So you can choose any discipline of your interest, but yes if you choose BA

then

choosing BA can be really helpful for your UPSC  examination, this is because in Arts 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

For reference, UPSC eligibility  criteria is provided below:-

*You  must  have  a bachelor's  degree in any, discipline    from a  recognised university.

*Minimum  age  limit :-  you  need to  be at least  21  years  old   to be  eligible as on 1st of August of the year of filling the form i. e as on 1st August 2021 for UPSC 2021.

*Maximum  age  limit :-  32 years , also there's 3  year  relaxation on upper age limit for  obc and of  5 years  for sc/st category.

For detailed  information related to UPSC eligibility criteria ,  you can visit our page at

https://competition.careers360.com/articles/upsc-ias-eligibility-criteria/amp

No,

It is not mandatory to do graduation from a government college, all you need is a graduate degree from any recognised university, it doesn't matter whether the college/university is private or government .

In case, if you want to know government colleges then do let me  know  in comments the course after selecting it as you are free to choose graduation course.

To help you further ,

here's a brief of your UPSC exam pattern :-

UPSC civil services examination has 3 stages listed below :-

• prelims exam :- it is objective paper and is of qualifying nature , there are 2 papers in prelims

• Mains exam. :- it is descriptive /written examination . There are a total of 9 papers in Mains examination

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

To know exam pattern in detail visit :- https://competition.careers360.com/articles/upsc

Thank you