Hello,

The admission in to IISER is done through SCB channel, KVPY and JEE Advanced. To apply through SCB channel you must have passed 10+2 with Science stream in the year 2020-21. To apply though KVPY you must have a valid KVPY fellowship commencing from 2021-22 academic session. Must have scored the additional cut-off criteria specified for marks obtained in 10+2. To apply for JEE Advanced you must have JEE Advanced 2021 score and to appear for JEE Advanced 2021 You must have passed 10+2 with Mathematics, Physics and Chemistry in the year 2020 or 2021. SO you are not eligible to apply for admission in to IISER for the academic year as you have passed 10+2 in 2019.

To check more details click on the link below

https://engineering.careers360.com/articles/iiser-admission#IISER-Admission-2021-Eligibility-Criteria