Hi candidate,

Yes you are absolutely eligible for pursuing PHD in environmental science after completing Msc focused in zoology.

The admisisons eligibility for PhD varies from university to university. So it would be great if you mention which college or university you want to prefer for Phd course.

Also, check out this  link for better reach: https://university.careers360.com/colleges/list-of-phd-in-environmental-studies-degree-colleges-in-india

Below I have enlisted some name of colleges for PhD in environmental science:

• Lovely professional university
• Subharathi college of science
• Bharati Vidyapeeth deemed university
• Aligarh Muslim university
• Jamia Millia Islamia
• Delhi university
• Allahabad university

Hope you find this information helpful.

Thank you!!!