CBSE 12th

Yes, any science student can apply for SRCC. But there is a tough competition. You should at least above 96% if from science stream. Also, see the eligibility criteria on the DU website. Marks of the science students are considered less. Suppose, you need to take admission for BBA course and have scored 97/100 in physics then, it will be considered as 95 as per the criteria because the major subjects are not BS, economics or accounts and this will follow in all subjects.

Yes, you will definitely get the here. The last year's closing ranks under general category for KCET in few branches are as under for an assessment:
1. B.E CSE Closing rank 32126
2. B.E ECE Closing rank 64745
3. B.E information Tech Closing rank 41248
4. B.E EEE Tech Closing rank 108399.

It is not possible for you to get admission in any of the top B.Arch colleges.

Dear Shubham,
No, your 12th marks will not be considered. Your graduation marks and the skills you have about the subject will fetch you the job. Start working on projects and internships to get idea about the course you're doing it will help you get better package in the future placements.

MCA is a PG course. In order to pursue any PG, you need to complete UG like BCA or B.Sc in computers.

It is not possible for you to get admission in any of the colleges until you complete your 12th. Therefore, if you clear 12th maths' compartment then you can take admission in any degree in any college.

It is not possible for you to get admission in any of the NITs as the minimum eligibility in any NIT is JEE Mains rank and 75% in 12th.

Yes, you can get admission in SASTRA with this percentile and 12th marks. There are less chances for you to get admission in branches like CSE, IT, ECE but if you belong to Tamil Nadu you are likely to get any of the branch.

To become a pilot, you have to join any flying school.
Good luck.