Police detained an operative of the banned militant outfit Jma'atul Mujahideen Bangladesh (JMB) from the city's Sabujbagh area.
"Counter terrorism unit of the police arrested Md Nur Azam Siddique alias Yasir, 38, for his link to the JMB from Basabo Balurmath area under Sabujbagh Police Station around 4.30am on Tuesday," said deputy commissioner (DC) Masudur Rahman.
One laptop, one mobile phone set and fanatic leaflets have been seized from his possession, he added.
The detainee has long been involved in recruiting new members for the militant organization, he said, adding that he has a plan to carry out large scale attack across the country, especially in the capital city, as per UNB report.
A case was lodged with Sabujbagh Police Station to this end.