You can get job oppurtunities in government as well as private sector.You can  also pursue Msc in environmental science which will help you to get jobs in india as well as abroad. You can apply for research degree in government organisations. You can get job oppurtunities in  textile mills , environment journalist, teacher/lecture in university or colleges, minning companies etc.

For your reference, check out this good post on environmental science, its prospects, institutions from where you can pursue the course. Eligibility and other features of this course.

Refer link.

http://employmentnews.gov.in/env...

Hope this helps you!