lahore pakistan pakistani opposition leader imran khan party say monday build momentum by-election oust prime minister nawaz sharif parliamentary seat despite finish second big inroads make two new islamist group sharif wife kulsoom by-election 49.3 percent vote eastern city lahore handsome margin victory 61 percent garner rule pakistan muslim league-nawaz pml-n party constituency election 2013. vote see barometer support nawaz wake disqualification supreme court july indication whether corruption allegations level sharif family impact power base vast punjab province general election due next year election commission preliminary result release monday show candidate khan pakistan tehreek-e-insaf pti party take 37.6 percent vote 35 percent last poll shah mehmood qureshi pti deputy chairman say shrink pml-n win margin 26 percentage point 12 constituency dominant show vulnerability closer-run race punjab 2018. happen one strong constituencies pml-n prime minister constituency since 1985 mean surge pti tilt pti say qureshi pti candidate yasmin rashid gynaecologist area monday dispute count file petition electoral commission suspend result continue struggle verification controversial vote play important role pml-n victory rashid say two candidates back religious party appear chip away pml-n vote share however together win 11 percent neither party one link u.s.-designated terrorist hafiz saeed exist 2013. analysts say by-election result certainly concern sharif party commit hardline vote shift pml-n others hard core somewhat independent seem shift say hasan askari political analyst pti officials bet corruption trials nawaz family due start next poll likely mid-2018 erode support veteran leader serve three stint prime minister nawaz deny wrongdoing family allege conspiracy lead supreme court disqualify declare small source income deny receive nawaz daughter maryam spearhead campaign mother receive cancer treatment london frame by-election chance voters reject supreme court verdict father late sunday suggest pml-n workers threaten abduct maryam name anyone pml-n source say accuse elements military establishment military comment maryam remark pml-n officials tout kulsoom victory proof nawaz remain popular voters say close margin largely due strong show two candidates back religious party one surprise monday official result third-place finish shaikh azhar hussain rizvi independent candidate back tehreek-i-labaik coalition islamist group labaik-backed candidate percent vote campaign platform support pakistan strict blasphemy laws campaign posters praise execute killer mumtaz qadri bodyguard assassinate punjab governor suggest laws might review execution qadri hail religious sects martyr islam yaqoob sheikh designate terrorist unite state 2012 capture nearly percent vote sheikh back new milli muslim league mml party loyal hafiz saeed washington accuse mastermind behind 2008 attack mumbai kill 166 people retire general analysts say mml yet legally recognize force sheikh appear ballot independent likely part mainstreaming project envision military draw militant group politics mml monday say plan contest another by-election northwestern city peshawar next month despite relatively strong gain neither mml tehreek-i-labaik see much chance win many seat 2018 ths story refiled add drop word paragraph despite by-election loss pakistan opposition claim momentum 2018