Pivithuru Hela Urumaya leader Udaya Gammanpila wants the introduction of a collective programme as a precursor to the formation of a national government.
Only then, parties in the opposition will be able to decide on joining such a government, the MP has told Neth News.
He is responding to reports that the president is planning the formation of a national government.
Meanwhile, SJB MP Tissa Attanayake said his party was not prepared to accept positions in the present regime.