The memorandum said there was rising discontent among the public over what was perceived as the CBI going slow in the investigation. “The ‘inherent weakness’ in the CBI charge-sheet has also led to the accused getting bail,” the memorandum alleged. said documents recovered from Subhankar Nayak, a city-based land broker, revealed the nexus between chit fund operators, politicians, bureaucrats and middlemen in the scam.