CBSE 12th

Yes, you can do B.Sc in computer Science. You can take admission in any one of college given below. Royal school of management and technology
CUTM
BJB autonomous college
They will provide you admission with 56% marks in class 12th. Good luck.

First, you need to complete your graduation in any subject, and then you can apply for B.Ed which is a 2 year course. After completing B.Ed, you can apply for different interviews to become a teacher.

It means, you have to apply in that particular application, providing your class 12th board mark sheet/marks and the preferences regarding the subjects you've studies in class 12th, and would like to study in graduation. If specified, anything regarding preferences in the form, then you will have to fill out according to that choice of field. For example, if you are asked to fill the branch you want to study in engineering, you will have to fill your preference in the order you want it. Like-
1. CS
2. EC
3. Mechanical etc.

It is totally up to you. If you work hard for the rest of the year, you will surely succeed. So, you don't need to worry about that. Just make sure that you work hard.

It's hard to say exactly, the percentage of the companies that is 60% in class 12th, and graduation as criteria for each company may change every year according to the needs of the company.

Yes Priyansh, you can. Additionally, check that you have some extracurricular activities too.

Yes, you can get admission in BCA after securing 55% marks in your class 12th, because the least marks a student should secure for getting an admission in any field or any stream subject is 45% to 50%, and you are above that. Hence, you can give the entrance exam to get admission.

Please check for basic eligibility to appear for the RIE entrance exam from the criteria mentioned at the link provided below. Minimum percentage for general category students to appear for this entrance test is 50%. Class 12 percentages will only be considered while applying to appear for the exam, and as per institute admission guidelines, after qualifying in the RIE CEE. Regards. https://www.shiksha.com/teaching-education/exams/rie-cee.

If you are interested in computer studies, surely you should go for BCA or else computer engineering.

Your class 11th marks will only be a problem, if you are planning to apply to overseas colleges. Mostly, colleges in India only consider class 12th marks.