Does I will get the benefit of Ews certificate in NEET examination admission. By providing Ews certificate and filled unreserved category in application form

To get the benefits of EWS Category, you need to mention this during your NEET registration. Now
If you select General Category and produce EWS Documents, nothing will be done to give the reservation benefits. You will be treated as a general candidate. Any request or mail for changes in information after the closure of the correction period will not be considered by NTA under any circumstances.