CBSE 10th

Yes, you are eligible for CAT exam, but you have very low score and with this you won't get selected in top colleges.

You might not be able to get admission into Techno India but still there are numerous universities and colleges which will get you admission into BCA. So, don't worry you can still pursue BCA course. If you want to learn programming languages which you will be studying in your BCA course then you can check out this app which is specially designed and developed for BCA students. 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. https://play.google.com/store/apps/details?id=technark.bca_courprogramming.

No this is not possible without maths.Some universities provide you without maths admission but in 2nd year of BCA maths is compulsory so you're not eligible.
Good luck.

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.

Hello,
It's nice to hear from you that you are interested in doing your graduation in engineering in aeronautical branch. It's great to keep aim at early age. If you want to do this then do not go for Diploma. Do your class 12th with good marks and take admission in engineering college in this branch. Best wishes to you.

Not really, but I would suggest you to keep your maths strong and basics of class 10th clear.

No, there isn't any scholarship on the basis of entrance exam. It has been held just for the sake of admission. However, you can get scholarships once you join KIIT and come out with flying colors in respective semester exams.

Class 12th Science group would be enough to pursue B.Tech and prepare for Entrance exams while you're studying class 11th and class 12th.

Unfortunately, your CAT score is below par. They generally call a candidate having more than 80 percentile.