The incident occurred around 12:00 pm near Shahbagh Mor in the capital.
The injured were later taken to Dhaka Medical College Hospital emergency department around 12:45 pm.
The injured include Abdul Hannan, 45, Joy Das, 35, Abdul Awal, 40, Tonmoy, 32, Zakaria, 60, and Md Sikandar, 40.
Colleagues of the injured, Md Kalam Howlader and Md Masud, said the march was organised by the “Government Employees Unity Council” towards the Chief Adviser’s residence, Jamuna.
Police blocked the procession before it could pass Shahbagh and used baton charges, sound grenades and water cannons to disperse the march, reports UNB.
Inspector Md Faruk, in charge of the police camp at DMCH, confirmed that six government employees were brought in injured from Shahbagh and were later treated and discharged by doctors.