According to CCTV footage, the files were moved during the weekend just before the current interim committee was appointed.
Details have emerged that Nishantha's secretary - Chayani Peiris, a one Ranjith attached to the security unit and an one Jayasinghe attached to the maintenance section was involved.
Earlier, two computer hard disks containing accounts data of the T20 cricket World Cup went missing and are yet to be found.