Bhubaneswar: CBI today interrogated three builders and a bank official for their alleged involvement in the money fraud by Artha Tatwa Group. Sources said that the central agency interrogated these persons after the CMD of AT Group, Pradeep Sethy, produced details of his mail conversation with them regarding financial transactions. Bhubaneswar: Police today arrested Rakesh Dalai, a ganja racket kingpin, from Bengal-Bangladesh border.