Around 19 hours of efforts by the law enforcers, the militants have finally agreed to surrender to the Rapid Action Battalion (RAB) within 8 pm today.
"We finally make them agree to surrender and they have promised to turn themselves before us between 7.30pm and 8pm," legal and media wing director of RAB Commander Mufti Mahmud Khan, who is supervising the operation from the spot, told BSS this evening.
The RAB official said they have enough preparation to ward off any attempt to carry out attacks during their surrender.
"We have given them maximum time to surrender as part of our initiatives to save the lives of two children staying in the den," the RAB official said.
RAB personnel surrounded a six-storey house at Mazar Road under Darus Salam Police Station since 1am today following information extracted from two militants arrested from Tangail, he also said.
The militants exploded bombs soon after the RAB personnel cordoned the house where seven persons including one of the top most militant Abdullah, his two wives, two children and two accomplices are believed to be staying.
Abdullah has long been staying in the house in guise of IPS (instant power supply) maker.
Huge quantity of explosives including 50 IED bombs might have been stockpiled in the house, RAB official said adding that 65 residents including 15 children, 24 women, and 26 men of 23 flats out of 25 of the house have been taken out and its gas, electricity and sewerage lines have also been severed.
Members of the RAB have been trying to neutralize the militants, he earlier said.