Ghalib never arranged or published his complete works as such during his lifetime. His Urdu Diwan is actually a selection from his entire poetical work and this selection is variously ascribed to him or to his close friends. This Diwan was published five times but every time the contents differ from each other. Many of Ghalib's verses are included in various Tazkiras, Collections and Anthologies and often-time in letters written to different persons. The dates of these are known or can be estimated and worked out. Based on these dates many researchers have tried to arrange his poetical works in what they call as "historical arrangement". But this term is a fallacy as these dates pertain to the publications of different editions, anthologies and letters. These can not be described as the dates of the composition of his verses. To be historically arranged, the verses have to be arrange in the order in which they were created. In this article, the author has drawn the attention to this literaryprevalent fallacy."