hello aspirant

It is totally upto you if you want to select your category as EWS category or not. If you want to enjoy the reservation criteria under CUET then you must Apply for EWS category. If your parents income is less than 8 lakhs and if you are eligible for all the criteria under a EWS candidates then you should fill the EWS category section in CUET.

The persons belonging to EWSs who, are not covered under the scheme of reservation for SCs, STs and OBCs shall get 10% reservation

Further, it's not compulsory as if you will not fill the EWS category then you'll be considered as a GENERAL Category or unreserved (UR) category student.

Further, if you wish to know more about the Reservation criteria in CUET then you can follow the below mentioned link to know more about it : https://university.careers360.com/articles/cucet-reservation-criteria

I hoipe that this will help.