The anti-graft buster filed the reference against Syed Murad Ali Shah on Tuesday.
The approvers in their initial statement stated that they were forced to issue liquor licence to a private hotel from the Chief Minister House Punjab.
It may be noted that Kiran Amaan, Noreen Sultan and Aslam Masood have already become the approver in the case.
Two accuse named, Abdul Shakoor and Nadeem Younis have already become approvers in the case and have agreed to return rs. 298mn.
It may be noted that the suspect during investigation offered to become an approver in the reference.