Abbasi met the former PM at the office of the latter's son, Hassan Nawaz, Express News reported.
Finance Minister Ishaq Dar and Nawaz's other son Hussain Nawaz also attended the meeting.
Analysis: Abbasi’s speech throws Delhi off balance
Sources said PM Abbasi and Nawaz discussed their party's future course of action.
They also discussed the victory of Kulsoom Nawaz, PML-N candidate and Nawaz's wife, in the by-election for NA-120, a seat left vacant after the Supreme Court in its July 28 landmark judgement had disqualified her husband.
Nawaz is in London because his wife, who is suffering from lymphoma, is undergoing treatment there.
Kulsoom was diagnosed with blood cancer last month.
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