Zardari said he felt he no longer has the right to contest the next presidential election, which will be held once he completes his tenure in September.
Zardari, 57, was elected President in September 2008, when the PPP and its allies were in power at the centre and in Balochistan, Khyber-Pakhtunkhwa and Sindh provinces.
The PPP currently is in power only in Sindh and controls the Senate or upper house of parliament.
Referring to his future plans, he said he would take on the leadership of the PPP if the party wants him to play such a role.
More From This Section
"This time, I will not have the right (to contest the presidential election) because we do not have a majority. Yes, there can be a fight but that fight will become messy," Zardari said in an interview with a small group of Pakistani television anchors.
"After that, if the PPP considers me capable of leading it, I will take on its leadership. Otherwise, I will function in the capacity of a worker," he said.
"If a dialogue is to be held with these forces and if this is the mandate of this (new) government and they want to hold a dialogue with these forces, then they should first identify which forces are political and which are militants," he said.
"Then by starting a dialogue with the political forces, you can use their influence on the militants because militants, in my view, do not hold dialogues," he said.