Opposition leader and former cricketer Amir Khan will march from Lahore to capital . Has called for the resignation of PM amid allegations of vote rigging in 2013 election . Prominent politician Tahir Ali Qadri has called on his supporters to join the march . Protest leaders are expecting around 100,000 people to join the march during what is a national holiday to mark Pakistan 's independence following British rule in 1947 . Supporters of Qadri died during recent clashes with security forces .
Opposition leader and former cricketer Amir Khan will march from Lahore to capital . Has called for the resignation of PM amid allegations of vote rigging in 2013 election . Prominent politician Tahir Ali Qadri has called on his supporters to join the march . Supporters of Qadri died during recent clashes with security forces .