The National Accountability Bureau (NAB) has transferred the investigation of Nehr-e-Khayyam land allotment case from Karachi to Rawalpindi.The probe has been transferred to Rawalpindi on the directive of the NAB chairman and a notification to the effect has been issued, NAB sources said. According to NAB officials, the case has been linked with the fake accounts and money laundering cases.Fake bank accounts were allegedly used for purchase and sale of plots worth billions of rupees, sources said. According to sources, the Omni Group sent the money generated from the plots to overseas. The amount was transferred to the overseas account of Manzoor Qadir alias Kaka, sources said.Manzoor Qadir is a former director general of Sindh Building Control Authority, sources further said. The arrested owner of a company involved in the scam, Abbas Ali Agha, had confessed that the money generated from the plots was laundered, NAB sources claimed.