Three-member bench headed by Chief Justice Saqib Nisar is hearing the case.
"Court wants to know how many have you killed," remarked Chief Justice.
IG police requested the court to extend dead line from one week but chief justice rejected it stating IG should know on finger tips that how many persons have been killed by the force.
While responding the development Pakistan Tehreek-e-Insaf (PTI) spokesperson Fawad Chaudhary welcomed it. He claimed that 137 people have been killed only in Kasur in police encounters.
Earlier, PTI chairman Imran Khan also blamed Chief Minister Shehbaz Sharif of carrying out his "dirty work" through Punjab police.