Commerce

Dear,
You may consider these options for your further education:
Economics Honours
BBA programme
Psychology
Journalism
Actuarial Science (if you had maths in class 12)
CA / CS
According to me, you should complete your graduation in India and maintain good grades and then Masters from abroad.
All the best.

Admission in MBA Finance is based on entrance examinations. You are advised to appear in MBA entrance examinations like CAT, XAT, MAT, SNAP, NMAT, IIFT, IRMA, etc.

You can appear for government exams along with a job and while doing an internship also. It doesn't matter as you need to be prepared for those exams to write them.

1st priority should be DU. There are many good colleges in India that are reputed for B.Com Hons. only. For more info, visit:
https://shiksha.com

That depends on what you want to do. If you want to pursue your future in commerce only, for eg. CA, B.Com BBA, etc. opt for Maths instead of physical education and Economics Instead of Entrepreneurship (if your school has that). But if you want to do something different like LLB, Hotel Management, then opt for anything you find easy. Accountancy, Business Studies and English are mandatory (at least was in my school).

There is no cutoff in schools. You just need to score passing marks/percentage i.e, i guess 33% marks.

Both have good job opportunities.
It totally depends upon your interest.
My advice for you is to go for commerce stream.

Yes, you can pursue Bachelors in law after completing class 12th in commerce.