Nacha was originally the son and heir to the throne of the King of Heaven, Tuota, from ancient Indian myths. In the Buddhist classics it is recorded: "At that time, lance in hand, Prince Nacha watched in all directions with a fierce eye."
哪吒原為古印度神話中，毗沙門天王的太子，在佛教大藏經中便有「爾時哪吒太子，手持戟，以惡眼見四方」的記載。