M.Sc.

There is no entrance exam in SASTRA for M.Sc. Courses. The eligibility is based on UG marks, where the minimum eligibility is 50% in UG course.

Yes, after your graduation you will be eligible for M.Sc. Geoinformatics. You will get admission for this.
Good luck.

Eligibility for Admissions in M.Sc (Mathematics) - Two Years Duration Course - Through Distance Learning Mode from any university in Gujarat is B.Sc (Mathematics).

Entire syllabus that you have studied in your B.Sc. (Zoology hons), but you mainly have to focus on classification part and biochemistry part. These two covers most of the questions asked in your M.Sc. (Zoology) entrance exam.

You can check this link for full information about how to apply online in this University and follow the procedure to get admission in University. Good luck for admission. https://www.shiksha.com/science/course/m-sc-in-statistics-university-of-mysore-110784.

http://www.fergusson.edu/article/sysyllabi.html.

Candidate must be a graduate in relevant stream from a recognized university. Selection is done on the basis of merit and entrance examination score on ratio of 50:50 for students of SPPU. For other universities students, candidates will be selected purely on the basis of entrance examination.

Hello,
Yes, you can get admission in IISER, etc. After doing B.Sc Honors physics from any college but the procedure one has to follow to go there is :-
Option no. 1:- after B.Sc. Hon's physics to do one year post graduate Diploma and then one have to give GATE exam, with GATE scores they take admission, this option will help you to get scholarship in M.Sc HRDM (human resource development ministry) will pay the charges of your academics.
Option no 2:- This option is regarding giving direct entrance exam of this institutions after that they select on the basis of entrance exam marks.