The interior minister said Shehbaz had not submitted any medical documents for travelling abroad or specified the treatment for his illness.
The Crown Prince "welcomed the recent understanding reached between the military authorities of Pakistan and India regarding ceasefire at the Line of Control, which is based on a 2003 understanding between Pakistan and India.
We must fight this global challenge confronting humanity together, Khan said on Twitter.
In a volte-face, Pakistan's cabinet on Thursday rejected the proposal of a high-powered committee to import cotton and sugar from India, with Foreign Minister Shah Mahmood Qureshi asserting that there can be no normalisation of ties until New Delhi reverses its decision to revoke the special status of Jammu and Kashmir.
Pakistan will buy sugar and cotton from India, newly appointed Finance Minister Hammad Azhar announced on Wednesday, lifting a ban on their import from the neighbouring country imposed in the wake of heightened tension over Kashmir in 2019. The decision was taken at the meeting of the economic coordination committee (ECC), which was chaired by Finance Minister Azhar.
Khan's letter was in reply to Prime Minister Modi's letter to him last week to extend greetings on the occasion of Pakistan Day. In his letter, Modi had said that India desires cordial relations with Pakistan but an atmosphere of trust, devoid of terror and hostility, is "imperative" for it.
Khan's spokesman Dr Shehbaz Gill said that the prime minister has just a slight fever and cough.
Pakistan Prime Minister Imran Khan on Wednesday said India will be benefitted economically by having peace with his country as it will enable New Delhi to directly access the resource-rich Central Asia region through Pakistani territory.
In his first comments since the militaries of India and Pakistan jointly announced on Thursday that they have agreed to strictly observe all agreements on the ceasefire along the Line of Control (LoC) and other sectors, Khan said Pakistan remains ready to move forward to resolve 'all outstanding issues' with India through dialogue.
The report said that collaborative efforts should be taken to renovate Terri Mandir (Karak), Katas Raj Temples (Chakwal), Prahlad Mandir (Multan) and Hinglaj Mandir (Lasbela).
Ties between India and Pakistan nosedived after a terror attack on the Pathankot Air Force base in 2016 by terror groups based in Pakistan.
United Nations proscribed terrorist Lakhvi, 61, who was on bail since 2015 in the Mumbai attack case, was arrested by the Counter-Terrorism Department of Punjab province on Saturday.
The Anti-Terrorism Court (ATC) Gujranwala issued the warrant during a hearing in a terror financing case instituted by the Counter Terrorism Department (CTD) of Punjab police against some members of the JeM.
Lakhvi, who was on bail since 2015 in the Mumbai attack case, was arrested by the Counter-Terrorism Department.
The exchange was made in accordance with Article-II of the Agreement on Prohibition of Attacks against Nuclear Installations and Facilities between Pakistan and India, signed on December 31, 1988, the Foreign Office (FO) said in a statement in Islamabad.
The security agencies in Pakistan are clueless about the whereabouts of these 19 most wanted terrorists. Some of them have been hiding in Pakistan and others are believed to have fled the country.
Saeed-led JuD is the front organisation for the Lashkar-e-Tayiba which is responsible for carrying out the 2008 Mumbai attack that killed 166 people, including six Americans.
India has slammed Pakistan for its decision to hold elections in Gilgit-Baltistan and said any action to alter the status of the militarily-occupied region has no legal basis.
Foreign Office spokesman Zahid Hafeez Chaudhri said on Thursday that "there was no pressure on Pakistan at all regarding the release of Wing Commander Abhinandan."
"We hit India by entering inside. Our achievement in Pulwama is the achievement of the entire community under the leadership of Imran Khan. You all also have credit (for it), Chaudhry told the National Assembly on Thursday.