CBSE 12th

First of all you have to mention whether you have appeared in CBSE or state board exams. Also it depends on which category you fall(general, OBC, SC or ST). However it is nearly impossible to say if you will get petroleum because as of now neither all India rank is available neither ACPC rank.
Thank you

You have very fair chances of getting a call. But every year cut off varies so this year cannot be predictable . All the best

Yes you have very fair chances of getting call . But every year cut off score varies . so it is unpredictable . Good Luck

In non medical, you have Engineering, BSc , BA, BCom, BCA. Bsc will be the best alternative for you as admission to BSc courses is by 12th Marks.
All the best.

There is no difference between B.Tech and B.E. Colleges offering other programs also call it B.Tech. Others call it BE.

With this mark, you may get Private colleges for CSE. You'll hardly get any government college. Hope for the best.
All the best.
Feel free to revert

Hi Dear,
Your query seems to be incomplete. Kindly ask specific questions, so that our experts can guide you accordingly.
All the best.
Feel free to revert.

If you are interested for MBA, best option for you after 12th is either BBA or BCA. BBA is more preferred as it will be helpful for you in MBA. Or you can simply go for BA and B.Com.

No, you are not eligible for du bmscet without maths. In fact they ask large no. of questions from maths of 10+2 level in their entrance exam. So its better you try for some other colleges.