He was nominated by Prime Minister Harini Amarasuriya and seconded by Foreign Minister Vijitha Herath as he was appointed unanimously.
NPP parliamentarians Rizvie Salih and Hemali Weerasekara were elected as the new Deputy Speaker of the Parliament and Deputy Chairperson of Committees, respectively.
During the session, the speaker announced that President Anura Kumara Dissanayake had officially recognised Sajith Premadasa, Member of Parliament from the Samagi Jana Balawegaya (SJB) as the Leader of the Opposition.
Dissanayke's NPP won 159 seats out of the 225 seats in the Parliament in the November 14 election.