Yes, after completing an MSc in Zoology, you can pursue a PhD in various fields like Zoology, Animal Biology, Ecology, or Environmental Science. The selection criteria typically include a strong academic record, relevant research interests, and an entrance exam (such as CSIR-NET or institution-specific tests). Some institutions may also conduct interviews to assess your research potential. Check individual universities for specific requirements, as they may vary.

For more details you can visit the link given below

https://www.careers360.com/university/jawaharlal-nehru-centre-for-advanced-scientific-research-bangalore