The two leaders discussed a number of issues including the ongoing treason trial of 70-year-old Musharraf, opposition's stand against the government's move to push through a controversial anti-terrorism bill, Karachi law and order situation as well as the talks with the Taliban.
However, meeting assumes special significance as it has been seen by analysts here as a show of unity and strength by the political class amidst unease in civil-military ties.
PPP leader Farhatullah Babar had yesterday extended his party's support to the PML-N government against any "undemocratic adventurism" saying he feared that the ongoing row could threaten the civil dispensation.
The current tension between the civilian authority and the army is primarily because of the Musharraf trial.
Pakistan Interior Minister Chaudhry Nisar Ali Khan had on Sunday admitted to an "irritant" lately that "we will get over".
The remarks came amid, what a military statement described as "undue criticism" of the Army, especially in context of the high treason trial of Musharraf.
Since that statement, there has been intense speculation here about tensions in civil-military ties.
An official statement released after today's meeting did not mention anything about the Musharraf trial.
Both leaders held delegation-level talks before heading for lunch.
Federal ministers Ishaq Dar and Zahid Hamid assisted Sharif and senior PPP leaders, including Khurshid Shah and Rabbani, accompanied Zardari.
