Ubaid, who was arrested in Rangers raid at MQM headquarter Nine Zero, was wanted in murder of a policeman Kamil Murtaza.
Federal B Area police brought the accused in City Court under the security of Rangers, to produce before the Judicial Magistrate Central.
Ubaid K2 has allegedly murdered policeman Kamil Murtaza in a target killing incident at Yousuf Plaza in Karachi.
