With this rank, you have a very little chance of getting into the IISER colleges.

However, do not lose hope as there is always uncertainty in the preference of the majority of the candidates. So, you should go for counseling round.

For more information about the colleges which could be allotted to you at this rank, go for the below link:

https://engineering.careers360.com/articles/jee-advanced-college-predictor

Best of luck for your future!