You can change your Category from General Category to EWS and then produce relevant certificates to avail the reservation benefits. But you cannot claim EWS benefits by selecting General Category in NEET application. You need to edit your Category. Details like name of Candidate, contact/ address details, category, PwD status, educational qualification, date of birth, etc will be treated as final. Any request or mail for changes in information after the closure of the correction period will not be considered by NTA under any circumstances. So if you select General Category and produce EWS Documents, nothing will be done to give the reservation benefits.