The projects include diplomatic buildings, procurements for the railway, and highway development
Fire Service personnel brought it under control around 1:45pm on Saturday, Gazipur Fire Service Assistant Deputy Director Md Akhteruzzaman said.
No casualties were reported but the Kader Synthetic and Compact Spinning Mill management anticipated huge losses.
Swapan Biswas, security supervisor of the mill, said the devastating fire originated from the air conditioner switch control room in the morning.
People rushed out of the factory as soon as the ground floor was seen on fire, he said.
The fire service officer said the ground floor of the factory erupted in flames around 7am.
The fire soon spread out to the entire two-storey factory building.
Fire fighters of Tongi, Kaliakair and Joydebpur Fire Service doused the flames, he said.