PPP Senator Raza Rabbani said the situation in Afghanistan was changing on an hour-to-hour basis and Pakistan would have to take far-reaching decisions that would require a national consensus.
The Pakistan Tehreek-e-Insaf party has won 23 seats while Pakistan Peoples Party was second with eight seats and the incumbent Pakistan Muslim League-Nawaz secured just six seats.
The 69-year-old former Pakistani Prime Minister, Nawaz Sharif, is serving his term at the Kot Lakhpat Jail in Lahore.
Nawaz and Maryam are expected to land at Lahore's Allama Iqbal International Airport at 6.15 p.m. (local time) from Abu Dhabi.
Pakistan's ousted Prime Minister Nawaz Sharif today returned home from London to face trial in the corruption cases spiralling from the Panama Papers scandal.