The agency told Special CBI Judge Bharat Parashar that they have already sent the necessary report to the sanctioning authority in this regard.
"It has been submitted by senior public prosecutor that necessary report for considering according of sanction has already been sent to the competent authority but the response from competent authority is still awaited," the court said.
The court has now fixed the matter for May 29 for filing of further progress report by the CBI.
CBI has not sought sanction for prosecution against the then Coal Secretary H C Gupta as he has retired.
The court had earlier refused to accept closure reports filed by CBI in separate cases lodged against two firms, JLD Yavatmal Energy Ltd and JAS Infrastructure and Power Ltd, now known as JAS Infrastructure Capital Pvt Ltd, and others.
In the case against JLD Yavatmal Energy Ltd, CBI had earlier filed a progress report of its probe in the matter allegedly involving Rajya Sabha MP Vijay Darda and others.
