hello,

the cut-off for IISER test is not a constant. It depends on the performance of the applied students which changes every year. The difficulty is usually about the JEE mains level, with a few advanced type questions. Results are out within 2-3 days of the test, and if you are selected,your name, the allotted IISER would be listed. No info about cut-off marks / marks you scored/ percentile etc are shown. My advice would be to score maximum in your strength, and make no negatives. Bio section is usually simple, but if you dont know an answer, don't guess it.

hope this helped