KARACHI: The Pakistan Tehreek-e-Insaf (PTI) has issued a ticket to Alamgir Khan, a social activist and founder of the Fixit campaign, to contest by-election on the National Assembly seat, NA-243, Karachi.br br This was one of the five seats won by Prime Minister Imran Khan in the July 25 polls, but he opted to retain his hometown Mianwali seat NA-95 and vacated the rest.br br The PTI has announced names of its candidates for the by-elections scheduled to be held on October 14.