A former Ambassador and Foreign Secretary, Khan was appointed to the post by president Gen Pervez Musharraf.
Chaudhary Shujat Hussain had served as home minister under deposed prime minister Nawaz Sharif. His brother Pervez Elahi is the chief minister of Punjab province, which has the largest number of members in Pakistan's parliament.
The Pakistani president will be in New York to address the UN General Assembly on September 24.
Before their meeting, Manmohan Singh had said that his meeting with the Pakistani president would be an essay in mutual comprehension.
Manmohan Singh celebrated his 72nd birthday on board his special aircraft Tanjore on the way to Geneva.
"We have fought wars over it. Pakistan will have to ensure the interest of Kashmiris," the Pakistani president said.
This is part of the $3bn aid granted by President George Bush during his June meeting with President Gen Pervez Musharraf.
Five packets of explosives were found on Monday near former Pakistani military ruler Gen Pervez Musharraf's farmhouse here, days after explosives were discovered on the road he was to take to a court.
Musharraf also recalled that he had many sleepless nights, asking himself whether he would or could deploy nuclear weapons, the Japanese daily Mainichi Shimbun said.
Pakistan military has appointed Lt Gen Zubair Mahmood Hayat as the new chief of the Strategic Plans Division, which manages and secures the country's nuclear arsenal.
Khan said Pakistan could have become a nuclear power as early as 1984 but the then President General Zia ul Haq 'opposed the move'.
Pakistan's former army chief Gen Pervez Musharraf kept Gen Ashfaq Parvez Kayani in the dark about Kargil Operation in 1999 despite the latter heading forces responsible to guard (Pakistan-occupied) Kashmir, according to a new book by a former general.
AQ Khan, a controversial scientist known as the father of Pakistan's clandestine nuclear programme, passed away here on Sunday after a brief illness. He was 85.
Pakistan Prime Minister Nawaz Sharif on Monday approved in principle the financing plan of the much-delayed 4500 megawatt Diamer-Basha Dam project on the Indus river in Pakistan-occupied Kashmir and asked officials to expediate its construction.
Saeed claims he was neither a security risk nor his outfit ever engaged in terrorist activities.
Lt Gen Haroon Aslam of the Pakistan Army on Thursday resigned a day after he was superseded by his two juniors who were made the new army chief and the chairman joint chief of staff committee.
When asked to explain, Musharraf, 73, said Gen Sharif played a role in "releasing the pressure" on courts to prevent him from leaving the country.
Gen Sharif had earlier promised to bow out at the end of his term in November this year.
Prime Minister Nawaz Sharif plans to name Pakistan's new army chief weeks before Gen Ashfaq Parvez Kayani's term ends in November to quell speculation about the issue, according to a media report on Monday.
Lt Gen Zubair Hayat appointed as Chairman of Joint Chief of Staff Committee.
Pakistan on Tuesday said a meeting between Prime Minister Nawaz Sharif and his Indian counterpart Manmohan Singh would be useful to revive composite dialogue and fast track bilateral issues but made it clear that it is not expecting any major breakthrough.
Abbasi will be sworn-in in later at a special ceremony at the President's House.
The 68-year-old former first lady was diagnosed with lymphoma (throat) cancer in August 2017.
Prime Minister Khan, in his address, said Pakistan will never fight any other country's war in future and his government's foreign policy will be in the best interest of the nation.
The newly-elected National Assembly, the lower house of Parliament, is meeting to elect the prime minister.
Khan's government will be the third consecutive democratic government in Pakistan since 2008.
Ending weeks of speculation, Prime Minister Nawaz Sharif on Wednesday appointed Lt Gen Raheel Sharif as Pakistan's new army chief and Lt Gen Rashid Mehmood as the chairman joint chiefs of staff committee.
Pakistan's powerful army chief has stepped in to mediate between the embattled government and the protesters seeking resignation of Prime Minister Nawaz Sharif, bringing the military back into the centre stage and signaling a possible end to the high-political drama.
Only on Wednesday, in his Independence Day speech, Prime Minister Modi said he wants to resolve the Kashmir issue through Vajpayee's doctrine of "Insaniyat, Kashmiriyat, Jamhooriyat" - a testimony to the former PM's lasting legacy.
Authorities arrange helicopters to shift Sharif to jail; 300 PML-N workers arrested.
She said Modi has the mandate to take bold decisions on the lines of Atal Bihari Vajpayee for the resolution of the problems in and around Jammu and Kashmir.
General Qamar Bajwa, his colleagues say, is a firm opponent of extremism and terrorism. He may prove even more forceful in the fight against terrorism than his predecessor, who is credited with launching Operation Zarb-i-Azb, which helped lower the frequency of terrorist attacks.
Abbasi will run the government until Sharif's brother Shehbaz is elected as member of parliament
Former External Affairs Minister Jaswant Singh believes that Nawaz Sharif could have been aware of Pakistan army's aggression in Kargil in 1999 despite the insistence by the then Pakistan prime minister that he did not know about it.