Notification issued by Ministry of Law and Justice says Elahi appointed with immediate effect.
Party ally Sheikh Rashid also files separate petition in SC asking Naqvi's appointment to be declared "illegal".
Justice Masood requests CJP to assign the chamber appeals to another judge for investigation.
Instructs the ministry to expedite matters and furnish report along with SOPs for proposed centre in next hearing.
Justice Naqvi says court is giving "complete freedom" to the JIT to conduct transparent inquiry into the case.
Three-member bench restrains election commission from "passing final orders" in the proceedings.
Orders Police Order 2002 be implemented for the public's good.
Forms a special committee to finalise SOPs for the proposed unit.
CJP notes that NAB amendments were done by "incomplete assembly", but says no law defines whether or not such a house can legislate.
Observes experts consulted on agreement, Balochistan assembly taken into confidence; concludes new pact not in violation of its 2013 judgement.
New JIT comprising officials from ISI, MI and IB formed; Foreign ministry submits reply to court, says "current bilateral approach is most likely to yield results".
Copy of report by fact-finding team submitted to apex court ahead of hearing.
Court turns down ECP's plea seeking summons for PTI leaders to appear before the election commission.
Sharif's wife asks why FIR registered on complaint of police and not family; SC takes suo motu notice.
He was suspended by federal govt in early November.
Justice Naqvi remarks interior ministry's plea is "ineffective"; CJP tells govt lawyer he has to prove that Imran committed contempt.
Former PTI leader apologises for misstating his dual nationality; Vawda remains disqualified as member of parliament till 2023, directed to resign as senator.
CJP notes frequent transfers, postings affect police command and performance, asks govt and provinces to file replies in 2 weeks.
CJP says long march is a "political problem that can be resolved politically", adds that the court does not want to take a "premature" decision.
Maintains reports filed by ICT, IB and ISI contain references and presumptions "not supported by facts".