Hello,

Indian Institutes of Science Education and Research Aptitude Test, in short referred as IISER is a computer-based test (CBT), conducted for 3-hour which has multiple-choice paper pattern, consists of 60 questions. This exam will be conducted in online mode.

The level of this exam is considered to be a quite easier than JEE  advance but it is quiet similar with JEE mains and NEET level.

Hope this will be helpful. For more information, please refer the below link:

https://engineering.careers360.com/exams/iiser-aptitude-test