Hii , It is possible in jitsi where the participants can not see other participants only moderator or host see the all participants.
No, this is not possible,
Okay so how can we achieve this any possibility?
It is not possible with a stock Jitsi setup, but there are several community threads discussing similar requirements and people sharing customisations that appear to work for them. For example:
I’ve never tried, so cannot comment further.