Detective Branch (DB) police have arrested Liton Mahmud Babu, also known as Terenam Babu, vice-president of Dhaka Metropolitan North Swechchhasebak Dal, from the capital's Mohammadpur area.
DB Additional Commissioner Mohammad Shafiqul Islam confirmed the arrest to the media on Wednesday afternoon.
He said Babu had been arrested on the basis of specific allegations but did not disclose the nature of the charges or the incident linked to the arrest.
The DB official added that the arrestee would be sent to court after completion of the necessary legal procedures.
Babu was expected to be produced before a court shortly after his arrest, he said.