Science

No best college gives you direct admission you have to give the entrance, if not then you don't get the best college. Only a few colleges can give you direct admission and those are not best.

Hi,
Check this link:
https://www.shiksha.com/science/ranking/top-science-colleges-in-india/101-2-0-0-0

If you want to reduce your fees, you can write exam, otherwise you can join directly.

Hello,
As you are interested in economics, you can go for teaching or research in it. There are UGC NET exam is organized for the candidates who want to become assistant professor or junior research fellowship also called JRF. As you have completed the M.Sc. You are eligible to apply for UGC NET Exam

Yes, you can do B.Sc with 40% marks from IGNOU.

Maths is not mandatory, but you may have to study maths as one of the subject in any of the semesters in B. Pharma. In fact Pharmacy is the only branch where in students of both Maths and Biology can get admission.

I don't think so, but you can opt BCA Bachelor of Computer Applications.
BCA mathematics is basic and easy when compared to B.Sc Computers.

PGDM (Post Graduate Diploma in Management) is a Diploma degree issued by AICTE (All India Council for Technical Education) recognized institutions in a 2-years full-time programme. B-schools offering PGDM course are autonomous bodies with industry-oriented curriculum which allows them maximum flexib

Virginia Tech
University of New Orleans
University of Missouri
George Washington University.