ISLAMABAD: Prime Minister Nawaz Sharif said that all political parties and leaders of the country need to collectively contribute towards the development and progress of the country. He said this while talking to JUI-F head Maulana Fazalur Rehman, who called on the premier at the PM’s House on Friday. Political matters of national importance were discussed during the meeting, a press release issued by the PM’s Office said. The ongoing development projects of the federal government in the province of Khyber Pakhtunkhwa also came under discussion during the meeting.