Class 12-science

You can give on the basis of 10th or 12th as well and yes, syllabus from both these classes will come.

Hello,
You should check out the official website to know the fee structure of BBA.

Yes, it is enough to get admission.

Know your college admission chances based on your JEE Mains rank, home state, caste, gender, etc., here:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

Work on your strengths to become successful. So, don't pursue which is not your passion. Your HSC and NEET marks are less, you might not be strong in those subjects, try other subjects, work hard and be a successful professional in the field you have interest.

Yes, you're eligible for admission into Noida Institute Of Management and Technology for a BCA course. You can visit the college for more accurate details about the college. If you want to learn programming languages which you will be studying in your BCA course then you can check out this app "BCA - Course Programming" which is specially designed and developed for BCA students and is available on Google Play Store. It has programs and assignments of languages like C, C+ and Java with their outputs. You'll be studying these languages in your 3 years of BCA.

Hi,
Please use this college predictor tool for better approximation
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor&ved=2ahUKEwi16pvN7MDiAhUIbn0KHXEMDQEQFjAAegQIBRAB&usg=AOvVaw1N9BzFtyUCP4JU-2UQHQ0H
Best wishes.