Hey Udayan,
At first many many congratulations for your success in JEE ADVANCED 2020.
We all know that without officially released cut-off details for top and eminent IISERs by the conducting authority we can't make any accurate comment regarding your admission chances. So we have to go for the previous year's cut-off details.
Hence after analysing those informations, I can assure you that you've enough probability to grab a seat under SC category in these 4 IISERs mentioned below:
So don't need to be worried. You can also check the following website to ensure my estimation:
https://engineering.careers360.com/articles/iiser-merit-list-and-cutoff
Hope that the Careers360 JEE ADVANCED college predictor tool must be quite helpful in this regard:
https://engineering.careers360.com/jee-advanced-college-predictor?icn=QnA&ici=qna_answer
Wish you all the best.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile