Brother, though it would be easier for me to decide if you had told your CRL rank. As EWS, being implemented for first time, it would be difficult for anyone to decide.

Though, from the past analysis, IESR takes students who rank (CRL) below 10k in GEN and OBC.

Though, you have quota, so might have higher chances but with this rank, it seems IESR quite difficult/unlikely for you.

I would recommend you to give, it's apptitude exam which helds few days after JEE advanced. IESR provides 50% seats vacancy for student to get admitted via this aptitude test.

Thank You