The National Investigation Agency (NIA) has seized incriminating material after conducting searches at six places in Mumbai in connection with a case of seizure of high-quality fake currency notes from neighbouring Thane.

The Thane police crime branch had seized fake currency notes of Rs 2.98 lakh face value in November 2021. During the investigation into the case, the “role of `D-Company` has prima facie been established in the circulation of the fake notes in India,” the NIA said in a statement on Thursday. D-Company refers to the syndicate of fugitive don Dawood Ibrahim—the key accused in the 1993 Mumbai serial blasts case.