They also demanded trial of the killers of slain former finance minister Shah AMS Kibria and others who died in different bomb attacks.

The human chain was formed under the 'Blue for Peace' programme initiated by Asma Kibria, widow of the slain minister.

Speaking on the occasion, Asma Kibria said there is no other way for the government but to realise the people's strong demand for bringing the culprits behind the bomb attacks to justice.

She called upon people to make their words of protest more powerful than the bomb blasts to compel the government to listen to them.

"I have much doubt about the trial of the culprits involved with bomb attacks during the tenure of the present government," said Mahi B Chowdhury, organising secretary of Bikalpo Dhara Bangladesh.

" Fifteen minutes into the four bomb attacks in London, the British Prime Minister appeared before his countrymen to deliver his speech while our Prime Minister is still silent despite passing of 15 days after the hundreds of bomb attacks across the country," he aggrieved.

"I never thought that my brother who served the country throughout his life would have to die in such a way," said Sharifa Mosabbir, sister of slain Kibria, in an emotion-choked voice.

Kibria's three other sisters Safia Rahman, Fouzia Shahed and Ashrafi Siddique, Dhaka University Teachers' Association President AAMS Arefin Siddique, Ramna Thana Awami League General Secretary Faizul Munir Chowdhury and other family members of the deceased took part in the programme.

Kibria was killed in a grenade attack in his hometown Habiganj on January 27.