I am still looking for an answer? Please help
Jive has a product called "Communities Everywhere" that will help to socialize a single discussion (and allow for interaction) on an external site. That does not appear to be an exact match for what you're looking for though. You're looking for a discussion summary, from a particular space perhaps in your community, on an external page.
You would need to build out the UI yourself, but you could leverage Jive's REST API calls to feed that rendering: Jive REST API v3.0 → Content entity
Thanks for your reply
Two things I want to do
1) Most recent discussion (Which I can get from the RSS also which is easy and use that in any RSS reader to extract data)
2) The Image of the user who has post this discussion/thread (may be name and Image Avatar) I don't think we can do it using RSS? We have to use REST API? or any other easy way?