Dear Dhanush, for the year 2019, the CUT off based on Paper 1 for EWS was 78.217. Now this is 2019 data and cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top JEE score and difficulty of the exam. The cut offs will decrease if the no.of seats available for admission increase and vice versa. So if you belong to EWS Category, atleast aim for 85 percentile.