sv?roci?a manu (hindu mythology)

When King Manu prays for God Vishnu to protect the world, his prayers are answered with a tiny fish who grows larger and larger until he enters the ocean and announces that a great flood is coming and Manu must save his people and animals by putting them on an ark.

The ancient Indian story of Manu, who is rewarded when he saves the life of a little fish. The fish tells him what he must do to save himself and the world from destruction in the coming flood.