The ex-NFF MP is explaining to BBC Sinhala Service the reasons for a group, including him, for having extended support to president Maithripala Sirisena.
The media has reported that Dissanayake was to be offered the law and order state minister position.
He said the president has not given him such a promise.
However, reports reaching Sri Lanka Mirror say Dissanayake has told the president that he would be willing to accept the provincial councils deputy minister portfolio.
MP Weerakumara Dissanayake
Along with him, Piyasiri Wijenayake, who was the NFF’s national organizer until recently, and north central provincial councilor P.B. Kumara obtained the SLFP membership.
Dissanayake observed that the SLFP being a party that has played historic roles, they decided to join the party and to be a strength to it, in order to prevent various forces from dividing it.
Referring to such forces, he said the Podujana Peramuna party was not fulfilling the needs of the joint opposition.
‘Anyone is free to remain, or leave’
Meanwhile, ex-president Mahinda Rajapaksa told the media at Sri Vidyasagara Pirivena in Hurikaduwa that certain MPs were leaving the JO as they were unable to share the electorates.
He said that was no different irrespective of whether they were in power or in the opposition, and added that anyone was free to remain or leave.