"We must subject our individual interest to party interest within the zone. That is the only way we can make progress,’’ Mark said.
Mark gave them the task at the party's North Central zonal congress held on Saturday in Abuja.
He said that both the party leaders and members in the zone must sacrifice individual interest and work in unity to lead PDP in north central and other zones to victory in future elections.
``The North Central use to be the hub and centre of PDP, unfortunately in the 2015 elections we lost and there is no PDP governor in the zone as we speak.
``We have realised our mistakes and we will correct them. Once those mistakes are corrected we will win all our elections.
``So far all the re-run that have been done PDP has won them. I think this is a track record and the only thing left is that we need to work a little more.
``The party must now stand united. Our strength is in our unity and our weakness will be if we divide ourselves and we will not be divided.
``We must subject our individual interest to party interest within the zone. That is the only way we can make progress,’’Mark said.
He added that what gave him joy was that anytime PDP gathered "there is so much enthusiasm, interest sand desires" as Nigerians now realised that "PDP is the right party to be in government."
``We will exercise patient in any election that is done now and in the next three years I can assure you that PDP will win convincingly,’’ Mark added.
The News Agency of Nigeria (NAN) reports that all the new zonal executives of the party were elected by consensus.
Some of the elected zonal executives are Mr Theophilus Shan (Zonal Chairman); Mr Mourice Tsar (Zonal Secretary), and Mr Joel Adagadzu (Zonal Organising Secretary).
Sen. Philip Aduda, the Senator representing the Federal Capital Territory (FCT), said it was commendable that the party was able to arrive at consensus on all the elected offices.
"This is important as it will put the party on the path of victory in future elections," Aduda said.
The PDP National Legal Adviser, Mr Victor Kwon, who administered oath of office on the newly elected officials of the zone, expressed satisfaction with the peaceful conduct of the congress.