ISLAMABAD: Renowned political leaders of Khyber Pakhtunkhwa called on the PPP co-Chairman Asif Ali Zardari here at Zardari House on Monday and announced joining the PPP. The leaders who joined the party included former federal finance minister Nawabzada Mohsin Ali Khan, president PTI Hayatabad (Peshawar) chapter Dr Ilyas Khattak and Mutiullah Khattak, who is nephew of the ANP leader Afrasiyab Khattak.