Hello Divanshi,

You can take up any bachelor's course, it won't affect your upsc preparation.  Try taking the subject which you want to take optional for upsc mains exam,  it will help you much better. If you want you can take BSc Cs course or BCA course, in future you can join any corporate sector for work easily. If you are taking other than that then you can open to research or teaching lines.

Thank you, all the best