M.Sc

EDIT: Admission to general courses has started. Fill the form quickly. The last date is 24 Nov 2020.
https://nehu.ac.in/public/uploads/Admission-notice-Gen-PG-Ph.D-2020-21.pdf
Hello Manisha,
The general course admissions have not started yet. Last year it started in July but this time due to this pandemic it hasn't started yet. Please check the announcement site of NEHU for upcoming dates.
The syllabus for the entrance examination will be of BSc. (Honours) course based on UGC model syllabus or you can have some idea from this link: https://www.shiksha.com/university/north-eastern-hill-university-nehu-shillong-24782/course-m-sc-in-zoology-268151
And can also go through this link for the UGC syllabus: https://www.ugc.ac.in/pdfnews/8963859_B.Sc.-with-Zoology.pdf
This is the last year format of the entrance exam: https://nehu.ac.in/public/uploads/Zoology-Entrance-Test-notice.pdf
You can get all the entrance test related updates from here: https://nehu.ac.in/Entrance-Tests