Five others burnt in the incident on Saturday night are said to be in critical condition.
Resident Surgeon Partha Shankar Pal said that nine victims of the arson were admitted to the burns unit of the Dhaka Medical College & Hospitals (DMCH) around 2:30am past midnight.
Raushan Ali, 35, was pronounced dead soon after. He had suffered 90 percent burns, Pal said.
The five, who are in critical condition, have sustained 55 to 88 percent burns, according to the burns unit doctor.
Amid the BNP-led coalition’s countrywide transport, a truck was plastered with petrol bombs at Magura’s Maghir Dhal area on Saturday night leaving nine workers severely burnt.
Locals rushed them to the Magura Sadar Hospital. Later, they were shifted to the DMCH.
More than one hundred people have died, mostly in fire-bombings, since Jan 5, when the BNP’s countrywide agitation demanding snap polls started.