The central probe agency has registered 10 FIRs in the case, which was being investigated by the Economic Offences Unit (EOU) of the Bihar Police.
The CBI took over the investigation after the Bihar government referred the case to it.
According to the norms, the agency re-registers the FIRs of the state police but is free to come out with its conclusion which is summed up in its final report--a charge sheet or a closure report.
The FIRs have been registered against Manorama Devi, Director of Srijan Mahila Vikash Samilti (the NGO), other officials of the organisation and bank officials, sources said.
They said the agency has received the reference from the Centre to take over the investigation and necessary documents have been received from the Bihar government today.
Priya Kumar is the daughter-in-law of Manorama Devi, the founder of the NGO.
Manorama Devi died early this year after which the NGO was being run by Priya Kumar and Amit Kumar, son of Manorama Devi, state government officials had said.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)