Science

Yes, you can do so. You have to approach the admissions office of your desired university to enquire if your degree is ineligible for applications in any way, just to be sure. You will also need to verify the specific requirements as all the universities didn't recognise this degree.
The minimum CGPA required to do an MS in Germany is 7 or 70%. However, if you want to get admission to a world-class university, you need the best score in IELTS, and your CGPA must be around 8.5
Some of the university in Germany that provides MS faculty-
ARDEN University
Technical University of Munich
RWTH Aachen University
Technical University of Berlin .

Admission to courses will be done on the basis of qualifying entrance test followed by personal counselling conducted by the university itself.
Candidates who have cleared NEET PG exam will also be considered for selection to MD/MS courses.
Further u even have eligibility and reservation criteria where students can enjoy to the maximum benefits offered by PGIMER

The shifting of streams whether it is Science or commerce is done when you going to take admission in an undergraduate course at ITM university also. You can take admission to Bachelor of commerce at ITM by fulfilling the required criteria such as you have studied Maths in your +2 standard. If you only want to study commerce, then you left from your previous degree to pursue B.Com. at ITM Raipur.

The authority of Oxford college of science chooses the students based on the merits they have obtained. Yes you can get admission through management quota by your performance through certain interview held by the professors at Oxford University

Yes, they do have B.Sc. Physician assistant course. After completing their degree, they can get opportunities like Clinical Associate.

Master of Science (M.Sc) in Chemistry is a full-time two-year (4 Semesters) postgraduate course offered by the Faculty of Physical Sciences (Department of Chemistry) at Punjabi University, Patiala.
In order to get admission you have to crack the Entrance test conducted by Punjabi University and the eligibility criterion for the entrance exam is the degree of B.Sc. with Chemistry or B.Sc. (Hons. School) in Chemistry.
So, the cut-off depends on your ability to score in that entrance exam.

Yes, you can. The mandatory subjects are Maths and Physics for taking admission into B.Tech.

A candidate will be selected to take up B.Sc food and nutrition course only if he/she has passed the chemistry in previous qualifying exams and further need to take it as one of the elective subjects respectively
Student needs to score minimum 50% of the exam

Following is the generic percentage required for B.Sc. (Hons.) In Zoology at Visva Bharati University, for General Candidates: 60% marks in aggregate and 60% marks in Biology /Life Science/Biological Science at + 2 level.

The fee structure at A.P.C College for Bachelor of Science (B.Sc.) is INR 2044/year, and for B.Sc. (Hons.) is INR 2139/year.