CBSE 12th

Depends on the college you are going, please interact with the placement department before taking an admission. Basically, it is an IT companies that require 60% marks in all classes.

No one is weak. Stop considering yourself as weak and tell yourself every day that you are also like those people who can top, because you also have the same brain as the toppers have. Tell yourself that everything is easy for you. And as for the boards, only one Month is left. Start studying for 12 hours at least.

BBA is under graduation course and MBA is post-graduation course. After class 12th, you can do under graduation course and after that you can go for post-graduation course. So, if you are interested in management, you can go for BBA and after that you can do Master's in this, which is also known as MBA.

Jamia Millia Islamia is the best college in entire Asia for mass communication.

No you can't do B.Com. It is for commerce students.

Every field is good. It depends on his interest for particular field. Personally, I think software engineering is the most beneficial.

Yes, you can apply after class 12th directly. BBA degree allows you to enter the field of management. This degree teaches the students with various aspects that are necessary for effective business management and essential for upcoming entrepreneurs and business managers. BBA also gives you a platform for pursuing courses like MBA.
Thank you.

No, it's not necessary that there will be a higher standard in MBA. Mostly, it depends on which college you are doing it from. You can go for M.Tech.