Confused between Political Science (Hons.) and Sociology (Hons.)

I'm filling my DU CSAS preferences and can't decide between Political Science (Hons.) and Sociology (Hons.). I genuinely enjoy both subjects.

My long-term goal is UPSC CSE and later a master's from JNU.

A few questions:

Which course helps more with UPSC preparation?

Does DU's Political Science syllabus overlap well with CSE?

If I take Sociology (Hons.), is choosing Sociology as my UPSC optional a good idea?

For JNU, which is a better path: M.A. in International Relations or M.A. in Sociology?

Would love to hear from DU/JNU students or UPSC aspirants.

Thanks!