Rapid Action Battalion (Rab) on Sunday cordoned off a suspected militant den in Chakalgram Chourapara area of Pathalia union in Ashulia, on the outskirts of the capital.
The elite police also arrested house owner, Ibrahim, said Mufti Mahmud, director of Rab legal and media wing.
Sources at Rab-4 said that they cordoned off the one-storey house since 1:00 am.
Sensing presence of the elite police, the militants fired gunshots several times upon them.
For security measures, the residents were being shifted to safe place.
Check-posts have been set up at important points on the surrounding roads.
A good number of Rab members has been deployed in the area to avert any untoward incident.