The General Post Office of Bombay was established in 1794 by the then appointed Postmaster General for Bombay Pesidency, Mr. Charles Elphinstone. Before that the Bombay had only an agency Post Office that the East India Company had brought into existence. All despatches of mail were brought in and delivered out of that agency Post Office. The East India Company was keen on overcoming the difficulty of establishing contacts with far-flung regions of the country under its occupation by establishing postal communication connecting the principal towns.

Source : Information Folder issued by Indian Posts & Telegraph Department, Government of India