I have ews certificate issued in dec 2020 and I'm applying for new one for jee adv 2021 now but it may take time , more then 16 Sept ( last date of registration) .what should I do . pls ans fast .

As per the JEE requirements, you need to have an EWS certificate which is issued on or after 1st April,2021. So without that you can't do so. But as per the information online, during the application procedure such certificates aren't required but at a later time its required. So you can give or apply for JEE Advanced but during admission or laterwards you need to have the certificate or the admission may get cancelled.

To know more about JEE ADVANCED visit the link below:

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

I hope this answer helps. All the very best for your future endeavors!