I'm currently pursuing mechanical engg. But would like to do an m.s in environmental engg. Or environmental sciences. Is it possible and how do I go about it?

Hey Shaurya. Yes, it's usually pretty easy to change majors within engineering (Mech E to Env E), especially if you're still a freshman or sophomore - since most of the coursework is the same for those first years. You'll have to check w/ your adviser though to figure out exactly how to make the change official and how you'll need to shift your course plan accordingly. Molly