Hii there,

Dear candidate as per the rules that are notified by Josaa counselling the Category certificate, or EWS-Gen certificate should be the one issued from April 01, 2020 onwards only. And as you know the certificate issued is by Central government so it is in English languauge only, you can visit the nearest pragya kendra or online is also available.

https://engineering.careers360.com/articles/josaa-counselling

All the best!