Hello,

If you have taken BSc in Chemistry then only you can do Msc in Chemistry.

In DU, you can take admission and if you have any reservation then that would be more smooth way to get an admission.

more information:- http://du.ac.in/du/index.php?page=pg-admission-details

in BHU, you are eligible. You have to pass the entrance test for MSc and get an admission.

In JNU, the eligibility percentage is 55% which makes you not eligible.

Hope it helps!