BNP Senior Vice-Chairman Tarique Rahman has urged the party leaders and activists to remain on streets until Prime Minister Sheikh Hasina is ousted through their movement.
The elder son of former premier and BNP chief Khaleda Zia made the remark in a programme at Atrium Hall in London on Sunday evening.
"Our only goal is to bring back democracy and rescue people from the clutches of the illegal government," Tarique said.
Calling upon the party men to continue the movement, Tarique said: "If the movement is halted, people and the country will be the sufferers."
He also urged the activists not to harm the people during the movement.
Tarique questioned the leaders and activists: "What will be your duty if anyone keeps you away from your mother? You should rescue her."
The BNP leader also suggested the party activists to disconnect each and every area of the capital and even the country.
Tension is prevailing across the country on apprehension of political anarchy and confrontation centring January 5.
BNP Chairperson Khaleda Zia is being confined inside her Gulshan party office since Saturday night. Four sand-laden trucks have been positioned on either side of Khaleda's office on Sunday night.
However, Monirul Islam, joint commissioner at the DMP and also its spokesperson, told journalists that Khaleda is not confined.
Tarique has been in London since September 11, 2008 on medical grounds after securing parole in various cases.
He faces 14 charges, of which four, including the August 21 grenade attack case, are on trial and the rest are stayed.