Zoology

By doing B.Sc in any of the courses of pure science, you can't guarantee yourself a stable future in today's world as the value of the degree is not much. But after your B.Sc., you can do your M.Sc, M.Phil and Ph.D. You can end up being a college lecturer or a research scientist.
If you develop any projects then you can have your own start-up and transform it into a big business. So, you have a mammoth number of options.
Hope this helped.

Biotechnology is one of the best career in coming future prospects so it's better aim.

Basic eligibility to pursue this course is that Candidate must have completed Graduation degree with Zoology as honours Subject. Admission is based on the marks obtained in graduation. Interested candidates can apply online/offline with required information. Regards.

To pursue a Ph.D, you need to have a Master's degree.

Hello Susmita,
To answer your query, I am attaching a link below which hopefully will clear your doubt-
https://www.shiksha.com/science/course/b-sc-hons-in-biological-sciences-presidency-university-kolkata-college-street-271002?q=Presidency+University+Kolkata&rf=searchwidget&landing=clp
Hope this was useful for you.
All the best and thank you.