CBSE 12th

Yes, you can get admission. Minimum 60% marks is the eligibility criteria of Amity to take admission in their various courses.
You have to meet their eligibility criteria.

Yes, you can. It all comes down to how much you love the course. If you want to go for animation please do. Arena animation is one of the best institutes that you can opt for.

If you like computers you can learn computers. So, you can also consider BCA as an option. If you want to go into pure science, you can consider B.Sc. As an option, no career option is good or bad. It's you who defines it, if you work hard in any specialisation, you can achieve heights. You could only imagine.
All the best.

The basic eligibility criterion for pursuing B.A. (Hons.) (Economics) degree is qualifying 10+2 or equivalent examination in any stream from a recognized board of the country.
Some universities give preference to the students having economics in class 12 but Ranchi University is not one of them.

Yes, you can apply for B.A(Hons.) social science/ arts only criteria is you must pass 12th with aggregate more than 50% of all subject and your age should be less than 22 years for SC/ST candidates. There is no minimum marks criteria for PH and OBC category 5% relaxation is offered. All the best.

After 12th, there are many fields to choose. Firstly, give a regional CET exam so that the marks you get in that will give you a good picture about your career.

Yes, you can do, but you have to pass your 12th with aggregate of 70%.

Hi Valmik,
Surely, you can get a good institute with a good CAT score, the selection process of every institute considers your academic but it is given very less weightage.

If you scored 70%-80% in 12th, then you are eligible for good colleges in India. Average fee is in between 25k - 90k per semester.

Please check for your eligibility to appear for the ICAR exam from the criteria mentioned at the link provided below:
https://www.shiksha.com/science/exams/icar-aieea.