The British Colonial Raj followed a strict hierarchical structure
in their offices for file movement. A file was moved from the
lowest to the higher officials, from the peons to clerks, to babus, to the highest official,
helping them to arrive at any decision on a certain issue, as the officials
in each hierarchy put their comments and sent the files.
As this process was not properly organized,
gradually a better system evolved for commenting and noting the necessary changes to be done on a document.
The left side of the documents was used for attaching chits or tags with comments/notes.
Much later, Lord Whitehall understood the importance of following a methodology
in filing and introduced a formal methodology of filing and that’s how the system of filing got
its name. After Independence the system is still followed and considered as convenient.