Hello Aspirant,

See EWS certificate is only valid for one financial year so if it has been issued for financial year 2020-21 then it won't work for 2021-22 and you have to renew it or should apply for new one, but note that if you have applied for JEE-Main 2021 in February 2021 or March 2021 then these months are of financial year 2020-21 according to which your current EWS certificate will be considered as valid but the admission will be conducted on the month of June-July which will be the months of financial year 2021-22 so you should produce your very latest EWS certificate for admission at that time and for April or May attempt there is no need to renew it.

Some insights of JEE-Main 2021 :-

> To qualify for JEE Mains, there is no minimum aggregate percentage criteria but yes if you want to take admission into NITs, IIITs or CFTIs then you should score a minimum aggregate of 75% in your class 12th if you belongs to General/Unreserved category and 65% if you belongs to any of the reserved category.

> Also from this year according to New Education Policy the JEE-Main examination will be conducted in English, Hindi and other regional languages such as Bengali, Gujarati, Assamese, Kannada, Marathi, Punjabi, Tamil, Telugu, Urdu, Odia and Malayalam.

This year JEE-Main is being conducted with slight changes in it's pattern and it's conduction and you can check out all the changes from the link given below :-

https://engineering.careers360.com/exams/jee-main

I hope this information helps you.

Good Luck!!