Hello Dear,

Indian Institutes of Science Education and Research are a group of premier public research institutions in India. IISER invites admissions in 5-year BS-MS degree courses through three channels namely JEE Advanced, KVPY, and SCB. The student who wants to apply through the SCB channel needs to appear in the IISER aptitude test 2021.The IISER aptitude test 2021,  a computer-based test (CBT), 3-hour multiple-choice paper having 60 questions will be conducted in online mode.  You can doenload papers from the link below:

http://www.oldquestionpapers.net/2013/01/iiser-10-years-question-papers-previous-year.html

For more information about IISER you can visit the link below:

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

Good Luck