Mr Sharif was sentenced by a court in Islamabad last week over the purchase of high-end properties in London.
"We must change the country's future.This opportunity will not come again", he urged and asked his followers to support him at every step. Sharif got 10 years in prison while Maryam got seven for abetment.
Before leaving for Pakistan from London, Maryam, said: "It is the most hard decision of our lives because my mother is on the ventilator and we don't know what happens next, their is no pain like that of leaving your mother behind in such situation but there's a national duty and we must make this important journey".
Both quickly vowed to return to appeal and though neither can stand in the July 25 general election, the PML-N hopes their appearance can galvanise a campaign which has seen them lose ground to the party of cricketer-turned politician Imran Khan.
The father-daughter duo, who traveled to London just before Eid ul Fitr to be with ailing Begum Kulsoom Nawaz, are scheduled to arrive in Lahore on Friday at 6:15pm.
Sharif alleges the military is aiding a "judicial witchhunt" against him and his PML-N party.
"Nawaz really believes this is about democracy and his legacy", Musadik Malik, Sharif ally and former PML-N cabinet minister, told Reuters.
Eight soccer team members rescued from flooded Thai cave, 5 remain trapped
There was heavy rain reported in the area, but that did not change the level of the water in the already flooded cave. Four boys were brought out of the cave Monday and are "safe and conscious", Chiang Rai province acting Gov.
Turns out, Maryam will be the first convicted woman prisoner to be taken into custody by Pakistan's anti-corruption body, the Islamabad-based National Accountability Bureau (NAB), reported The News International.
Ousted Prime Minister of Pakistan, Nawaz Sharif, appears with his daughter Maryam, at a news conference at a hotel in London, Britain July 11, 2018.
Until Thursday, the interim government had arrested over 300 PML-N workers under the Maintenance of Public Order Ordinance ahead of the former PM's expected arrival.
Heavy contingents of police and Rangers have been deployed on all the entry and exit points of Lahore. His brother Shehbaz became PML-N's president, but Sharif remains the power behind the throne.
"Those who think they can scare us.open your ears and hear this: we are winning this election", Shehbaz Sharif told reporters in Lahore on Thursday.
PML-N leaders say authorities have began a crackdown against union council leaders, the street-level party workers who bring out people on the streets.