Colleges in Gujarat

Hello, SBS Ahmedabad isn't a too reputed college for pursuing MBA since it doesn't feature even under the top 50 across India. I suggest you ignore it and look only for the other better ones.
Link: https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india/2-2-0-0-0

To get MBA seat in Kousali institute of management, you need to have a rank of 600 to 700.

Yes, you can definitely get a seat in DA. Verify it with college preditor.

Yes, you are eligible for CAT and GMAT, you have a very good score in class 10th and class 12th, try to score more in both this exam

Dear, it is a 50-50 chance to get admission there. Be ready with your rank because they will take admission through rank, not percentile.
All the best.

Yes, you have to clear it.

Hello Hira,
It is very nice to see that you are interested in doing your graduation in engineering in IT. It's great that you already have set your sights. However, admissions to engineering colleges are based on the basis of class 12th exam and not on class 10th. Hence, I would like to advise you that please study well in class 10th as well as class 11th and class 12th, and score good marks. Then, think of admission in engineering. Best wishes.

Yes, you have a very good chance of getting a scholarship. But it is very hard to achieve and hard work need to be put in to achieve it.