Dear student,

The ews certificate is generally valid for a year, so if you issued your ews certificate on 23rd March, 2020 then it would just be valid for the year 2020-21. However I would recommend you to check the validity date of the certificate, it is usually written somewhere in the certificate. But according to ke it would not be valid for the year 2021-22 for icet counseling 2021. So I would recommend you to get it issued again.