Hi

Your EWS certificate is valid of 1 financial year, financial year .

Now,

Your financial year starts on 1st April and end on 31 March.

So, your ews issued on 15/01/2021 is valid for the financial year 2020 -2021 means, it was valid only till 31st March 2021.

As  from 1st April 2021 , the new financial year has started  start i. e financial year 2021 - 2022

If you are trying for admission in 2022 then you will need certificate issued either on 1st April 2022 or after it for admission in 2022 dear.

Thank you