Engineering

To be able to take admission in NITs/IIITs/GFTIs you should score more than 75% in your board exams (not necessarily in PCM) or you should be in top 20 percentile in your 12th in your board exam. Just recheck your eligibility criteria whether you are in or not.
Good Luck!

McGill University of Toronto
University of British Columbia
University of Alberta
University de Montral
McMaster University of Waterloo
The University of Western Ontario
University of Calgary
Queen's University at Kingston
are some of the universities for automotive engineering. The best part in studying in

A main campus is always better than an affiliated campus. SRM and VIT are no doubt one of the best private institutes in India. In my opinion SRM Chennai (main KTR campus) is better than VIT Bhopal. And with this rank, it would be easy for you to get in SRM.
All the best!

Computer engineering have more scope as compared to robotic. The robotic course is very rare and its good only for people who have good practical knowledge.

Both have equal importance. I suggest you to choose the branch you are interested in the best college.

You can opt for MS programme and look up in which field you are good.

Yes, you can try RV engineering college, MSR, Dayanadasagar etc in Bangalore for CSE.