Dear Aspirant,

It is not clear from your question what type of certificate you want to know about.

For jee advanced, A valid GEN-EWS certificate as per the prescribed format, given on the JEE (Advanced) 2020 website, issued on or after 01-April-2020, should be uploaded for availing the benefits of GEN-EWS category.

You can check the official certificate format here:-

https://jeeadv.ac.in/certificates.php

Hope this helps. Thank you.