B.Sc

I would suggest you to pursue Masters like M.Sc in the same subject or relevant ones.

You can get it from Jamia Xerox Point.

Yes, you can go through that according to the syllabus.

Yes, you are eligible for that course.

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

To pursue BCA you can join from science, commerce and arts background. However, to pursue B.Tech or B.Sc. CS you will need a solid background of mathematics. B.Sc CS is a general course and BCA is a technical course, so getting a job through BCA is easier than B.Sc CS. After B.Sc CS you can do M.Sc. CS or MCA both. So decide accordingly.

In B.Sc, you can choose:
1. B.Sc in forensic sciences
2. Optometry
3. Radiography
4. IT
5. Agriculture
6. Veterinary Science
7. Forestry
8. MLT
9. Physics

There are a lot of:
1. Post Matric Scholarship
2. Caste Category Scholarship
3. Scholarships for Higher Studies
4. Meritious Students Scholarship
5. Merit cum Means
You can check the NSP Portal for more information:
nationalscholarhipportal.gov.in

No, UPSC provides same type of question paper for all the students appearing for the exam. It does not distinguishes based on your type of degree.

Give NEET exam and score good marks in that you will get admission on merit base.