Islamabad , Oct 2 (INP) Chief of Pakhtunkhwa Milli Awami Party (PkMAP) Mahmood Khan Achakzai on Monday called for unity among the ranks of political parties for strengthening democracy. He said this during his meeting with former Prime Minister Nawaz Sharif at Punjab House today. Sources said that during the meeting, Achakzai assured Nawaz Sharif of his full cooperation. INP/AH