Hello,

EWS certificate means economical weaker sections. If your father income less than 8 lakh per annum and no properties are present then you are belongs into EWS category.

But if your father income more thab that then you are not belongs to this category. You have EWS certificate 2020 year, but not in this year. If it's valid then you can use it. If it's not then try to renew it dear.

All the best.