In Pune there are following institutes/Universities offer B.Sc. Environmental Science course:

Fergusson College, Pune
Address : F.C. Road, Pune – 411004

BHARATIYA JAIN SANGHATANA COLLEGE (ARTS, SCIENCE and COMMERCE), Pune India
Address : Bakori Phata, Wagholi, Pune – 412207

Balaji College of Arts, Commerce & Science (BCACS), Pune
Address : Survey No. 55/2-7, Tathawade, Near Wakad, Off Mumbai- Bangalore Bypass, Pune – 411033

Tell me that from above three in which you want to do B.Sc. Environmental Science course so that I can provide you more detail about that particular course.