Meanwhile, sources in PTI said that Khattak, Qaiser and others who have secured seats in the NA along with the K-P assembly, would have to leave their provincial seats as the party needs every seat to get the required number to form its federal government.
In a related development, two main parties - PML-N and PPP - have agreed on formulation of a "coordinated joint strategy".
The PPP delegation comprised former prime minister Yousuf Raza Gilani, Sherry Rehman, Qamar Zaman Kaira and Farhatullah Babar while the PML-N side was represented by Mushahid Hussain Sayed, Ayaz Sadiq, former prime minister Shahid Khaqan Abbasi and Sardar Mahtab Ahmed Khan.
Fawad Chaudhry, a spokesman for Khan's party, said that with independents it has the support of 168 members of the national parliament.
His nearest rival, Shahbaz Sharif's Pakistan Muslim League Nawaz (PMLN) party won 63 seats.
The Allahu Akbar Tehreek party of Hafiz Saeed, who is accused of masterminding the 2008 attacks that killed 166 people in the Indian city of Mumbai, did not win a single seat.
Découvrez les plus belles images de la "lune de sang" — Eclipse lunaire
Elle a pu être observée, en fonction des conditions météorologiques, depuis l'Afrique , l'Europe , l'Asie et l'Australie . Comme la Lune sera teintée d'une couleur plus sombre durant l'éclipse , les autres astres deviendront plus visibles.
Khan has said that he will take oath as the Pakistan prime minister on August 11, Radio Pakistan reported on Monday.
Further, the PTI leader urged Muttahida Majlis-e-Amal (MMA) Maulana Fazlur Rehman to not boycott parliament.
Khan, during a speech declaring victory on Thursday, offered to investigate opposition allegations of vote-rigging and said he wanted to "unite" the country under his leadership.
PM Narendra Modi congratulated Imran Khan on winning the Pakistan general elections. Pakistan's economy is teetering on the brink of a balance-of-payments crisis; sooner or later, and probably sooner, the new government will have to turn to the International Monetary Fund for support.
"We don't accept the results of the elections", he said.
He says it is a new Pakistan.
VIDÉO - La Palestinienne Ahed Tamimi accueillie chaleureusement par la foule
L'adolescente palestinienne Ahed Tamimi été accueillie chaleureusement ce dimanche par la foule à son retour en Cisjordanie. Les deux jeunes filles leur demandent de quitter les lieux puis leur donnent des gifles et des coups.
The former cricketer campaigned on populist promises to build an Islamic welfare state to improve the woeful heath and social care available to most.
Now, the former World Cup cricket champion will have to partner with independents and smaller parties, a task analysts said should be straightforward.
We have made a decision to play the role of an aggressive opposition in parliament, said a senior PML-N leader who had participated in the MMA-convened multiparty conference in Islamabad on Friday.
A supporter of Imran Khan, chairman of the Pakistan Tehreek-e-Insaf (PTI) political party, celebrates during the general election in Rawalpindi, Pakistan, July 25, 2018.
He will also have to contend with the same issue as many of his predecessors: how to maintain a balance of power in civil-military relations.
But he has already created unease by pandering to Islamists during the campaign, and such a coalition could fuel fears his government will cater to the religious right.
Hamilton leads Mercedes one-two at sodden Hungaroring
He fought valiantly on his finished soft tyres but Vettel had newer tyres and eventually caught up to him. For teammate Max Verstappen, it wasn't the best day after an engine problem forced him to retire.