The Enforcement Directorate has registered a case against Islamic preacher Zakir Naik and his organisation IRF in connection with alleged laundering of nearly Rs 100 crore.

Officials said the agency's zonal office has registered an FIR, called Enforcement Case Information Report (ECIR) in ED's parlance, against Naik and others after taking cognisance of a similar complaint booked by the NIA under the Unlawful Activities (Prevention) Act against them.