Prior to his appointment as a judge in the District and Sessions Court, Zulqarnain served as a judge in an Anti-Terrorism Court.[2]
In December 2022, he was appointed to a three-year deputation by the Lahore High Court (LHC), during which his services were placed at the disposal of the Islamabad High Court (IHC).[3] He succeeded Yar Mohammad Gondal as the special judge of the banking court in Islamabad.[3]
Zulqarnain is facing allegations of misconduct, which may result in his repatriation to his parent department, the Lahore High Court (LHC). The Islamabad High Court (IHC) initiated this process following a contentious judicial decision and observations, wherein he granted an adjournment to a defendant in a bail petition, leading to discrepancies in the case proceedings.[4]