"As regards ongoing investigation by CBI, we have made it clear that all necessary information as required by CBI and all necessary files that may be needed for inquiry/ investigation has to be provided by all concerned," a bench headed by Justice R M Lodha said.
It asked the concerned authority to provide "full cooperation" to the agency and "all files sought by it must have to be supplied at the earliest without any delay".
The bench, also comprising justices Madan B Lokur and Kurian Joseph, passed the order after one of the petitioners alleged the Ministry of Coal was not co-operating with CBI in supplying complete documents.
However, the charge was denied by the agency which replied in affirmative to a bench question "is there co-operation by all in the matter"?
Senior advoate Amarender Sharan, appearing for CBI, said "we are seeking files".