BNP Secretary General Mirza Fakhrul Islam Alamgir Thursday (8 December) reiterated that the party will hold its 10 December rally at the capital's Nayapaltan area.
Fakhrul clarified his party's stance at a briefing a day after a clash with police that left one BNP man dead and dozens injured.
The BNP senior leader said, "The finding of bombs at the party office is nothing but a drama staged by the police."
He also criticised police for entering the BNP office at Nayapaltan without a search warrant and the presence of the owners of the office.
Meanwhile, the bomb-disposal unit of Counter Terrorism and Transnational Crime of Police gathered in front of the BNP headquarters.
The area surrounding the BNP central office was seen cordoned off with retractable barricade tape, a bright yellow coloured belt that is used to warn or alert passersby of an area or situation containing a possible hazard.
"Vehicles of the Bomb Disposal Unit have been brought here after multiple improvised explosive devices were found, Dhaka Metropolitan Police (DMP) Joint Commissioner (operations) Biplob Kumar Sarker said confirming the matter to The Business Standard.
"Police are down analysing the crime scene as a part of which CCTV cameras are being installed to further enhance the surveillance in areas adjacent to the BNP party office, he added.
The police official also requested journalists to leave the crime scene area immediately.