The motorcade of Ganatantra Mancha was allegedly attacked during the coalition's road march at Mokamtola port in Bogura's Shibganj upazila.
Leaders of the seven-party coalition accused local Awami League activists of attacking the convoy with sticks and bricks and injuring three of its leaders and activists.
They condemned the incident and demanded the arrest of the culprit during a press conference held at Bogura Press Club on Monday.
Junaid Saki, the coordinator of Ganasanghati, a top leader of the Ganatantra Mancha, said the convoy was attacked as they were moving with their road march towards Bogura after the rally at Joypurhat Road intersection near Mokamtola port.
Saki also accused the police of non-cooperation during the attack.
Ganatantra Mancha's top leader Saiful Haque and other central and district leaders were present at the press conference.
Nagorik Oikya President Mahmudur Rahman Manna addressed the rally presided over by Shibganj Upazila Nagorik Oikya convener Shahidul Islam.
A whole host of political echelons including the Chief Coordinator of The People's Solidarity Movement Junaid Saki, General Secretary of Bangladesh Biplobi Workers Party, Chief Coordinator of the Rastra Sangskar Andolon Hasnat Qayyum spoke at the rally among others.
Nagorik Oikya leaders Abdul Based Badshah, Bidyut Amin Saikat, SM Saddam Hossain, Saidur Rahman Sagar, Harunur Rashid, Enamul Haque, Jubo Nagorik Oikya leaders Amit Hasan, Rashidul Islam, Nagorik Nari Oikya leaders Beauty Begum, Najma Khatun, Chhatra Oikya leaders Rashed Mahmud Tushar and Siam Chowdhury were present on the occasion.
Calling the government illegitimate, the speakers at the road march urged the people to take to the streets against the government.
"The present government is in power by force. It is at loggerheads with the people by taking away the right to vote. They're trying to consolidate power by changing the constitution."
