Zoology

Yes, you need to appear for the entrance exam conducted by Gauhati University.

You must have Chemistry as one of the subjects in your graduation, to pursue MSc in Zoology.
To see the detailed criteria, please click this link-
https://www.shiksha.com/science/course/m-sc-in-zoology-banaras-hindu-university-varanasi-272041

M.Sc Zoology eligibility criteria for BHU-
B.Sc. (Hons. )/ B.Sc. under at least 10+2+3 pattern securing a minimum of 50% marks in the aggregate in Science subjects (considering all the three years of B.Sc. Course). The subject in which admission is sought must be Hons. subject at B.Sc. (Hons. ) level

You need to appear for the NIMSEE exam and the final selection will be based on merit and performance in the said exam. For detailed information regarding admission eligibility, please click this link- https://www.shiksha.com/science/course/m-sc-in-zoology-nims-university-jaipur-284273.

Yes, Institute of Engineering and Management Studies offers distance courses, and you may do your M.Sc. from here. For more information, you may please check this link too- https://www.shiksha.com/college/institute-of-engineering-and-management-studies-bhubaneswar-36313

The M.Sc. Zoology common entrance syllabus is as under.
1. Core Courses:
a. Bio systematic, Structure and Functions of Invertebrates
b. Tools and Techniques in Biology
c. Animal Physiology and Ethology
c. Genetics and Evolution
d. Structure and Function of Vertebrates
e. Environmental Biology
2. Elective C

Yes. It can be provided but this option is not available here. Contact via other media.