The High Court also sought probe into the hardships that Ruchika's family underwent at the instance of disgraced former Haryana DGP SPS Rathore.
The notices were issued by a division bench comprising Chief Justice Mukul Moudgil and Justice Jasbir Singh.
The PIL was filed by an NGO, Global Human Rights Council through its Chairman Ranjan Lakhanpal, a local practicing lawyer. The notices are returnable on Jan 27.
"Certain aspects in the Ruchika molestation case needed to be probed so that the family of the victim got justice and the accused were brought to book," the PIL said.
The PIL comes after 67-year-old Rathore got away with a light punishment of six months imprisonment and a fine of Rs 1,000 for molesting the 14-year-old girl.