IGNOU offers an M.Sc. in Zoology, but it is through distance learning, not at a Meerpur centre.
As of now, there’s no IGNOU study centre in Meerpur offering this course.
You might be confusing IGNOU with Indira Gandhi University, Meerpur (Rewari), which offers a regular M.Sc. Zoology.
If you're looking for distance education, you’ll need to check nearby IGNOU regional centres.
So yes, M.Sc. Zoology exists at IGNOU, but not in Meerpur specifically.