Hey.

Here is a list of few colleges with Environmental Engineering course.

Vellore Institute of Technology, Vellore

Indian Institute of Technology Madras.

Indian Institute of Technology Bombay.

Indian Institute of Technology Delhi.

Indian Institute of Technology Kharagpur.

Indian Institute of Technology Kanpur.

Delhi Technological University, Delhi.

NIT Warangal

NIT Trichy

SRM, Chennai

COE Pune

You can use the link below for a more comprehensive list

https://engineering.careers360.com/colleges/list-of-environmental-engineering-colleges-in-india