Hello Aspirant,

As per the notification released by IIT Bombay for JEE-Advance 2022, the candidate claiming EWS reservation benefits must have EWS certificate issued on or after April 1st 2022 in consonance with the latest guidelines of the Government of India. So if due to any reason you would not be able to get it then you can upload a declaration [Declaration in Lieu of GEN-EWS Certificate] to that effect.

You can check out complete information through official website :-

https://jeeadv.ac.in/

Also a one-time measure has been provided for JEE-Advance 2022 according to which

"candidates who appeared in class 12th (or equivalent) examination in 2020 for the first time are also eligible to appear for JEE (Advanced) 2022 PROVIDED they satisfy the following two criteria simultaneously:

***** The candidate should have appeared ONLY ONCE for JEE (Advanced), either in the year 2020 or 2021; OR, have NOT appeared in any paper in both JEE (Advanced) 2020 and JEE (Advanced) 2021.

***** These candidate(s) should appear/should have appeared in JEE (Main) 2022 and meet the cut-off score of the top 2,50,000 successful candidates (including all categories) for qualifying for JEE (Advanced) 2022 in their respective category."

You can check out complete information brochure from the link given below :-

https://jeeadv.ac.in/documents/IB-2022-English.pdf

I hope this information helps you.

Good Luck!!