Bhubaneswar, Mar 21: Yetserday the Serious Fraud Investigation Office (SFIO) grilled in Seashore chit fund scam accused in Jharpara Jail here. Seashore chief Prashant Das and his brother Pravat Das and middleman Subhankar Nayak were interrogated by the SFIO team. Recently, CBI special court here had granted permission to interrogate the accused and asked the agency to complete their investigation within a month. Earlier AT chit fund chief, Pradeep Sethy along with arrested Manoj Patnaik, Jyotiprakash Jayprakash, Srikrushna Padhi and Deepak Parekh were interrogated by the SFIO team.