Class 12-science

There are multiple options available after 12th Science to choose from. You can choose any streams based on your interests to excel. Following options are available: (a) B.Tech (b) B.Pharma (c) BBA (d) Five years integrated law (e) Change to Commerce/ Economics stream (f) Change to Humanities graduation (g) Hotel Management (h) Fashion Design (I) Fine arts
You can evaluate joining Defense Services also by appearing in NDA.

No, the criteria is of 75% marks for all students.

Sorry for breaking your hopes, but the answer is no. For admission in an IIT college, you should have minimum 75% marks in class XII board exams.

You have to do only one thing- observe in which field do you want to spend more time than your daily routine work. If you observe this you automatically come to a conclusion on which field is the best for you.

Yes, maths is a compulsory subject in 12th science. There are in total 5 subjects in 12th. Those are physics, chemistry, match's, English and the 5th one is optional; either you can take computers or physical education.

Your marks are very low most of the time the admission for general category closed above 90 and your marks are deducted when the percentage calculated against the cut off released by DU because you are fro. Science background and didn't studied any subject of B.Com. If you belong to general category your chances are very low to get admit in this course. If you belong to ST category maybe you get admission. But don't lose hope; wait till the last cutoff comes. You can check out last year cut off released by DU on their website.

You can't go for admissions with a reappear. You need to present a passing result first.

It would be better do +2 again with better preparation and after that choose a good college.

Fistfull to do MBA:
You have to be eligible for that and to be eligible for MBA you need to do your under graduation so you can choose BCA or BBA to complete your MBA BCA has good scope but for that you need a good college check out some good colleges for yourself and pursue your BCA or BBA to study MBA because you don't have very good marks. Still, you have a chance to get a good college if you can clear the entrance.
Good luck.
Thank you.

Yes, you get admission. All the best.