The Registrar of Companies is believed to have submitted its report to the Centre on the preliminary probe into the Satyam scam.
Sources said that RoC Hyderabad submitted its report on Monday night to minister of corporate affairs Prem Chand Gupta and this report would be the basis for handing over the case to the Serious Fraud Investigation Office.
The SFIO is already assisting the RoC in the probe, but is being formally handed over the investigations.
The Registrar of Companies in Hyderabad, where the head office of crisis-ridden Satyam is located, will be a part of the SFIO team to probe the case, sources added.
On Friday, the ministry of corporate affairs dispatched the SFIO team, consisting advisers and inspectors, to Hyderabad to assist RoC in the Satyam probe.
The MCA has already ordered an inspection by the RoC (Hyderabad) of eight subsidiaries of Satyam, including Maytas Infra and Maytas Properties, the companies promoted by the family of disgraced Satyam founder chairman B Ramalinga Raju.
Earlier, Gupta had said the cases would be referred to the SFIO after receipt of a report from RoC, Hyderabad.
However, sources indicated that the probe would be handed over to the SFIO before waiting for a report from RoC, Hyderabad.
The minister had earlier said, "RoC (Hyderabad) has already seized voluminous documents from various premises of the company."