The two parties made the announcement after a JUI-F delegation led by Molana Rashid Mehmood Soomro held a meeting with the MQM-P Rabita Committee at their temporary headquarters in Karachi's Bahadurabad.
Khyber Pakhtunkhwa interim Information Minister Feroze Jamal on Thursday said that 19 members of the caretaker cabinet, including him have tendered their resignations.
In August last year, the electoral watchdog issued notices to Fawad Chaudhry and others for allegedly using "intemperate" language against Chief Election Commissioner (CEC) Sikander Sultan Raja and the electoral body, ARY News reported.
Advocate Gohar Ali Khan appeared before the court on behalf of Pakistan Tehreek-e-Insaf (PTI) chairman Imran Khan. Meanwhile, Amjad Parvez represented the Election Commission of Pakistan (ECP).
The ECP, in the 14-page petition, had asked the apex court to review its decision as the judiciary "doesn't have the authority to give the date of elections."