The PTI founder, a 70-year-old former international cricket star, has been at the centre of a political crisis since he was ousted in a parliamentary no-confidence vote in April 2022.
On Friday, PTI leader Umar Bodla appeared on behalf of the former prime minister and submitted Khan's nomination papers for the National Assembly's NA-89 constituency, according to Geo News.
"Imran Khan was, is and will continue to be the chairman of Pakistan Tehreek-e-Insaf. I will carry out my responsibility till Khan returns," Gohar Khan said.
Imprisonment could win the former prime minister and his party greater electoral support and strengthen his image as a fearless campaigner for the disadvantaged.