Hello Student

your EWS  certificate as it is written that the certificate is valid for 20 21 to 2022 and it has been issued on 21. 03.2022, So validity of your certificate will be exhausted in the month of April of 2022. So you have to get renewal of EWS certificate on April 2022. According to the Government rules the validity of EWS certificate is of 1 year only. To get valid EWS certificate from the respective authority of your residential area or domicile area you have to apply  with  valid documents for getting a renewal of your certificate mentioning the specific date on which date it has been issued the certificate.

Hope this will help.