Rabiul Islam, officer-in-charge of Kashiadanga Police Station, said Maruf Hossain, 16 was killed when a cattle-laden truck ploughed through a shop at Balia in Kashiadanga on September 9.
Azizul Alam, 55, grandfather of the victim filed a case against the truck owner Babu Azad, 37, son of Barjahan Ali of Tanore upazila and Jibon, 37, a truck driver and son of Ayeb Ali of Paba upazila and Bulbul, 27, son of Abdur Rahman of the city in this connection.
Later, police arrested the trio on Sunday and produced them before a court on Monday. The court sent them to jail.
When the news spread, the truck workers put up barricade in Shiroile area in the city around 2 pm, disrupting truck movement.
Later, they withdrew their programme around 4 pm following a call from Rajshahi city mayor AHM Khairuzzaman Liton.