A Lahore police official earlier said that Gill was murdered and one of the accused, Hafiz Shahzad, confessed to the crime. He said the killers later threw Gill's body in a canal on Sheikhupura Road.
A police official told the court Monday that a laptop belonging to Gill had been recovered from one of the accused involved in the murder.
He said Gill's family identified the laptop which was sent to laboratory for data recovery.
The officer said the Interpol has been contacted for the arrest of prime suspect Shahid Ghazanfar, who escaped to Germany after killing the Sikh woman.
The petitioner's counsel asked the court to freeze the bank accounts of Gill in Switzerland and Canada.