Yes there is a category wise reservation in ISI.

Following is the number of seats available for different categories for Bachelor’s courses:

Total seats : 50

General : 25

OBC-NCL : 14

SC : 7

ST : 4

There is a reservation in application fee also. Application fee for the General category candidates is Rs.1250 while for other category candidates, it is only Rs. 625.

For more information regarding admission into ISI, kindly visit its official website i.e., https://www.isical.ac.in/~admission/