The party said scores of its members were nabbed in the sweep in eastern Punjab province.. She was also convicted and sentenced to seven years in prison.
Both were sentenced in absentia while in Britain, where Sharif's critically ill wife is in hospital.
Relatives see off former first daughter Maryam Nawaz as she leaves for the airport to return to Pakistan along with her father Nawaz Sharif.
Captain (retd) Safdar was arrested on Sunday, July 8 while Maryam Nawaz and Nawaz Sharif are due to return on July 13, Friday.
Shahbaz Sharif condemned the arrests, demanded they stop and that everyone detained be immediately released. Speaking on the development, Pakistan Information Minister Syed Ali Zafar Nawaz Sharif can not be allowed to enter the city since he is convicted and will be arrested from the Lahore airport once he lands in Pakistan.
Meanwhile, authorities in Lahore set up shipping containers and other barricades to block key roads leading to the airport to prevent Nawaz Sharif's supporters from rallying there.
In the context of the present political circumstances in Pakistan, if Sharif is somehow able to win the next general election, the forces opposing his return should prepare for a leader who will be more assertive, independent, and defiant with his policy actions in the government. Sharif's open criticism of the establishment and his defiant posturing aimed at establishing civilian supremacy in the country are likely to lead to a wider confrontation among various state institutions, including the military. The Pakistani Taliban had claimed that attack, which took place in the city of Peshawar.