Both the career options are very good. See you have to extract your sole interest which can be done only by you. You have to think which job profile you will enjoy the most. If you think that BCom+CA will give you the environment you like to do then you can go for it. Now if you think that no being an officer and serving directly for the nation is your goal then you have to choose SSC/UPSC/MPSC etc. So you have to find the direction which will satisfy you the most as a individual.

As you are a human being, you have different targets in life, you have dreams and you want to see yourself in some place. SO you have to extract your feelings and have to find the way which will make you happy as a work profile as well as you are enthusiastic about it.

To know more about CA as a career visit the link below:

https://www.careers360.com/careers/chartered-accountant

To know more about UPSC IAS visit the link below:

https://competition.careers360.com/exams/upsc-civil-services-exam

To know more about SSC CGL visit the link below:

https://competition.careers360.com/articles/ssc-cgl

To know more about MPSC visit the link below:

https://competition.careers360.com/articles/mpsc-syllabus

I hope this answer helps. All the very best for your future endeavors!