Hi Windsor, the cutoff varies every year based on various factors like number of seats available number of test takers difficulty level of exams category of the student etc. However going with the past cutoff you have very high chances to get into IISC as the cutoffs end at around 818 for 2018 and 770 for 2017. You also have high chances to get call from IIT Madras, because most of the courses there have highest of around 700 as cutoff.All the best.