President Ranil Wickramasinghe officially informed the Parliament of his resignation from the Parliamentarian position.Its because hes took the position of the Presidency

After the General Secretary of Parliament Mr. Dhammika Dasanayake informed the Parliament about it,

Mr. Vajira Abeywardena, Chairman of United National Party, took the oath for the vacant seat in the presence of Speaker Mr. Mahinda Yapa Abeywardena.