For JNU M.Sc Environmental Science we need to go through all these topics and books thoroughly..
1. Question paper solved for 5 years
2. Chemistry 10+2 organic and physical
3. NCERT Biology 10+2 PT
4. Biology (Nitrogen Dioxide) read this chapter
5. Ecology (Book) by Mr. P.D Sharma
6. Math —- Matrix chapter
7. Physics 10+2 2.
The exam is in objective type. So referring solved objective type guides will also help you. Currently there is no solved question papers of JNU MSC Environmental Sciences. UGC Solved Question Papers also will be a great help for you. But don’t depend merely on solved question papers as the questions may be changed every year.
Boltin Keller and Tyler Miller are established writers in the field. Refer any one of his books.