Law enforcers said counterfeiters have been targeting mall shops in the capital to distribute their counterfeit money.
Although 25 such counterfeiters have been arrested by law enforcement agencies, business owners are not out of danger.
According to the law enforcers, some 15 such gangs are active in the city.
On Monday night, police and RAB arrested 10 such criminals while the latter were carrying out monetary transactions.
Law enforcers also recovered Tk4.25 lakh counterfeit money from their possession.
A DB team of the DMP East Division arrested seven suspected members of the gang from Mahanagar Nattyamoncha area under Paltan police station on Monday night.
The arrestees are Alauddin, Yunus Miah, Altaf Hossain, Ronju, Badal Hossain, Milton Sheikh and Yusuf Ali Hawlader.
These arrestees during interrogation confessed their long-time involvement in the crime. The team also recovered Tk2.78 lakh from their possession.
In a press briefing at DMP media centre, DMP DB Deputy Commissioner (East) Md Mahbub Alam said these 15 money counterfeit gangs have been active in the city ahead of Eid. Police have already arrested some of them, and attempts to arrest other counterfeiters will continue, he added.