Hello,

The admission to Indian Institute of Space Science and Technology in Thiruvananthapuram occurs by considering the JEE Advanced score. You should apply there once the admission procedure starts. Once all these steps are completed, rank list will be prepared using the meirt of candidates. It is this rank list that determines your admission. You can also visit https://www.iist.ac.in/  to view the previous year cut-off and marks of various ranks in the rank list.