It’s true, a garbage truck has 4 wheels and lots of flies because flies like garbage. Here flies means insects like houseflies, mosquitoes, ... It doesn't mean that it flies in the air.
Dena Bank Ltd was an Indian public sector bank with the tagline " Your Trusted Family Bank ". It was headquartered in Mumbai. The bank was founded in 1938 and the Indian government nationalized it in 1969.