The project has become mired in scandal because to date, not a single building has been completed since the construction contract was signed in 2011.
DSI chief Tharit Pengdit said thenprime minister Abhisit and his deputy Suthep appeared to have violated the Cabinet resolution that required the project to be divided by zone and offered to the successful bidders for each zone.
Instead, just one bidder was selected, PCC Development and Construction Co Ltd.
“We are preparing to forward our investigation report to the National AntiCorruption Commission next week,” Tharit said Wednesday at a press conference.
Tharit said PCC also appeared to have duped several of its subcontractors, who took on construction work for the project without knowing that the government had not sanctioned the subcontracting.