A bench headed by Justice T S Thakur said that the scams have inter-state ramification and directed the investigation be handed over to the central agency from the state authorities.
It also asked the Enforcement Directorate to conduct the probe expeditiously against the accused companies. It however, refused to constitute a committee for the time being to monitor the CBI probe in the scams.
The bench directed the state authorities to cooperate with the CBI in the probe and provide all details to the agency.
The petitioners had said they have no faith in the police authorities. They had alleged that the proceedings initiated by state governments appeared to be "biased and prejudiced" and sought a CBI probe into the multi-crore scams.