Detective police arrested three Nigerian nationals from the city at Tuesday night on charge of cheating people.
A DB raided Dhaka Regency Hotel at Khilkhet and arrested gang leader Adlaju Samuel, Okoxe Cmeko Emmoruel, 28, and Okafor Chike, 26.
During preliminary interrogation, Samuel reportedly revealed that he along with his other accomplices have been involved in taking money from various people giving them fake dollars for a long time.
Acting on his confessional statement, the detectives conducted another raid on a flat at D1 of 63/4 at Lake Circus of Kalabagan and arrested Okoxe Cmeko Emmoruel and Okafor Chike from the flat.
The detectives also recovered fake currency-making materials from their possessions.
DB sources said Samuel was introduced with Mostafa Kamal, a resident of 42/3/A Indira Road in Farmgate, at a reception of Dhaka Regency Hotel on August 15 last month.
Kamal gave Tk one lakh to Adlaju Samul as the Nigerian national promised to Kamal $5000 in exchange of the Bangladeshi currency. Later, Okoxe Cmeko Emmoruel and Okafor Chike also received the same amount of money from Kamal from the same place on August 23. But they did not give the dollars as promised.
Later, the Nigerian nationals contacted Kamal to give the dollars on Tuesday night. When Adlaju Samuel came to Dhaka Regency Hotel again on Tuesday night, the DB men arrested him.