The agency today filed its reply after Indrani's former husband and co-accused Sanjeev Khanna moved the court through his lawyer Shreyansh Mithare to seek a copy of Rai's statement.
"Copy of relied upon documents and statements of witnesses have been supplied to the accused," the CBI said, adding that the court may pass an order it may deem fit.
Rai recorded his confession before the magistrate under section 164 of Criminal Procedure Code last November.
24-year-old Sheena Bora, Indrani's daughter from an earlier relationship, was allegedly strangled to death in a car and her body was burnt and dumped in a forest in Raigad, 84 km from here, in May 2012.