The petitioner also sought a probe involving enforcement directorate, corporate affairs department and IT department.
Achuthanandan in his petition, filed days before the state goes to Lok Sabha polls on April 10 with a view to put pressure on the UDF, submitted that a fair and impartial enquiry was required in the solar case to inspire confidence among the public regarding justice delivery system.
The money trail involved in the case has to be found out in the interest of the state's economy, he said.
The earlier investigation by crime branch was not impartial, he contended adding no effort was taken by the investigating team to trace the amount collected by the accused.
The scam involving a fraudulent solar company-- Team Solar - had taken a political turn after a personal aide of Chief Minister Oommen Chandy was arrested, for his alleged links with the accused who allegedly duped investors huge sums by promising solar panel solutions.