The apex court, which had earlier permitted the agency to share its final charge sheets with its counsel before filing them in the trial court, extended the modification in relation to status report as well.
A bench headed by Justice R M Lodha said that "fine tuning" of status report was necessary and for that purpose assistance be taken from the in-house prosecutor, excluding the officers of the Law Ministry who are on deputation with the agency.
It asked the agency to file next status report by January 9 next year giving details of its probe in coalgate till December 31.
The bench also allowed CBI to include one more officer in the team of 39 officials conducting probe in coal blocks allocation scam.
During the hearing, advocate Prashant Bhushan sought a direction to the Enforcement Directorate to give details of steps taken by it after the CBI lodged 14 FIRs in the scam.