Commerce

After 12th, you can go for B.COM+CA, B.COM and then MBA provided you do it from a good college(B.COM+MBA), BBA and then MBA provided, you do it from a good college (BBA+MBA).
You can also go for B.COM+ CS, CMA
And, if you are Interested in Law, then law related courses like give CLAT exam this year CLAT. Exam is done. So, try for the next year CLAT to get admission in top national law universities.
Best of luck!

In the future, commerce really have good Career prospects and good job opportunities, provided you give your 100% on what you doing
After 12th, you can go for B.Com and after that, MBA or BBA and after that, MBA can be pursued if you do it from a good college. You can also go for B.COM+CA or Law related courses.
Best of luck!

Hi,
To know the score of E-commerce in India, you can refer to this article:
https://www.linkedin.com/pulse/e-commerce-india-scope-challenges-future-shantanu-gaur
Talking about the scope of electronic media, we are in the era of digitalization where everything is electronic, thus there is a huge scope of electronic media.

Yes, you are eligible, however, you need to have at least the percentage in 12th that will take you to be considered in the cut-off list.

You want to do a core job or what? Yes, these jobs do need science students but remember that there are material management experts and commerce expert jobs too in these fields. Your question is not clear, but I think that you should do a job in that field to suffice your heart's desire.

Your plan is already clear about what you want to do, that is, BA (Hons) in Economics and MBA in Finance. If you are able to do MBA from any of the top 10 international or Indian B-Schools, you will easily get a job in any of the top 5 consulting firms. After you learn the consultany principles and methodologies by working with proven consultants, after few years of experience, you will be in the position to start your own consulting firm.
All the best.