Hello Aspirant

Basic eligibility for UPSC is just that you must be graduated in any field, either its bcom honors or BA, it doesn't matter at all.

If you have completed your class 12th with commerce stream then you can go for bcom honors and if you did it in arts stream then you can choose BA in your graduation.

The main thing matter is UPSC prepration, you need to study hard to clear all the concepts from basics to advance level.

I hope this information would be helpful for you.

All the best for your bright future ahead