In olden day’s mariners, artisans, traders, Buddhist monks and religious leaders used to set sail together and this trend continued till the advent of modern shipping. The representation of art on the walls of the caves, stupas and temples enlighten us regarding their joint ventures, experiences and problems faced during the sea voyages. The finding of varieties of pottery, punch marked and Roman coins, Brahmi and Kharoshti inscriptions along the ports, trade centres and Buddhist settlements suggest the role played by them in maritime trade during the early historical period and later.

This paper presents the archeological evidence for Buddhism’s spread across maritime trade networks between Sri Lanka, Southeast Asia and north and south India since likely before the Ashokan missions and continuing regularly ever since.