Is it possible to ask refund for the days I have not stayed in hostel

I took admission in NIT Jamshedpur for MSc course ( academic year 2017-18) but within one month of the starting of the classes, I got an opportunity to get admitted into Hyderabad Central university ( the entrance exams & counseling process for both the institutes are different ). So, I left NIT Jamshedpur and after much request, they have refunded just the Caution money. I wish to get the refund of my - i) academic fee ( with some deduction, of course ) ; ii) my hostel security fee ; iii) my hostel fee ( after deduction as per my number of days of stay ) . Please suggest if it is legally possible, and if yes, what route should I take ? Thanks.