We have an requirement to auto reload comment section when a new comment is posted by any user in this page in community same as like facebook, instagram etc.,Could someone help us in providing direction for this
Are you using the OOTB comments component
please check this https://helpx.adobe.com/in/experience-manager/6-3/communities/using/comments.html
If you have your own custom component then in this case you can make a call to your servlet on the click of post button .
And servlet can fetch all the previous comments for that user including latest one.