Commerce

Hello,
You can apply for the UGC NET Exam if you have completed the post-graduation with at least 55 % marks (50 % marks for the Reserved CAT. Candidates). You have various options available to apply in the UGC NET - https://examspotdotblog.wordpress.com/2018/12/08/ugc-net-exam-preparation-books-and-study-material/ Exam after completing the Masters programme. You can apply for the given subjects:
UGC NET in Economics
UGC NET in Commerce
UGC NET in HR
UGC NET in Management
UGC NET in Tourism.

Current cutoff is 80.60 for B.Com and all. With this you can pursue the same.

If you are interested in food and nutrition then you should do 12th (science) but as you have commerce background so it will be difficult somehow. Cost may differ from college to college.

Yes, it surely has, but never choose a field by considering it's scope to other field. Do what your interests are in, and in this way, you will be successful in your career.

Both fields are equally necessary in India, and while thinking about the scope, it depends on what you do with the study. I mean, if you are well creative enough, then you can have a better scope in any field.

Commerce field gives you an ample of opportunities to enhance your career with study in different disciples, and you can also start your own work, if you want to avoid working under others.

Opportunities after commerce degree are few in India, but if you complete your Master's degree, then the scope and the opportunities for you will widen. And, over a period of time you will realize that you chose the right path.

Yes, you can do B.Com +CS after your class 12th commerce, and it is a good choice, because CS has a very hood scope now, and it is likely to grow through years passing, and there will be good amount of jobs available for you later.

You can clearly pursue CS, and it doesn't matter whether you are a good student or am average one all you need it to have keen interest in programming and it has a good scope too.

After completion of your Bachelor's degree, you would be eligible to take admission in MBA College.