RO clears Imran Khan's nomination papers for NA-131 Jun 19, 2018 Written by News Desk Published in National News File Photo RO clears Imran Khan's nomination papers LAHORE – The Returning Officer (RO) on Tuesday cleared the nomination papers of Pakistan Tehreek-i-Insaf (PTI) chief Imran Khan for Lahore’s constituency NA-131. Tagged under imran_khan pti