The discussion between Prime Minister Ranil Wickremesinghe and UNP Deputy Leader Sajith Premadasa will begin shortly at Temple Trees.
Informed political sources said the discussion would start around 9 PM.
Speaker Karu Jayasuriya will also attend the discussion.
However, none of the supporters of Premadasa will be allowed to join the discussion, our sources added.
The discussion is aimed at finding a solution to the party's presidential candidacy issue.