Class 11

You have to re-appear for exams if failed in 1-2 subject to be promoted to class 12. But, if you fail in more subjects, you have to repeat the whole academic year all over again.

Hi Drashti,
Any candidate who had completed their intermediate class studies from any of the recognised boards is eligible for BMM course. The subject selected for study is not a restriction for pursuing the same. The students who have passed XII class with Science, Commerce or Arts are eligible to undergo the course. They should have obtained not less than 50% marks in the qualifying exam.

You are advised to chose Science stream with Physics, Chemistry, Maths and Computer Science as subjects. This will give you option to do B.Tech CS/IT or BCA or B.Sc CS/IT to become an ethical hacker.

Dear,
Apart from engineering, there are other fields in which you can establish your name like
BALLB
Pyschology
Journalism
English Hons
Foreign language
Sociology
Development studies
Special education
BFA Animation or visual communication
All the best.

For maths, go for Cengage and for physics, DC Pandey and HC Verma are good options. You can study chemistry from OP Tandon and NCERT.

You have to choose between biology and maths stream. Also, you can opt for both if you belong to a CBSE school.

You have many options with you, it totally depends on your interest where you want to see yourself in the coming years. You can go for arts, science, commerce or for a Diploma course.
Choose according to your interest.