AS FAR AS STUDYING COURSE MODE IS CONCERNED,ITS DONE IN ENGLISH.
HOWEVER, FOR MORE QUERIES REGARDING THE JNU YOU CAN CHECK OUT THE LINK BELOW. https://admissions.jnu.ac.in/Prospectus/JNUEE/FAQ%20on%20admissions.pdf
YOU SHOULD CONSULT WITH CONCERNED FACULTY OF JNU FOR BETTER AND SURE ANSWERS
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile