Utnapishtim vs. Manu

In the Hindu flood story, a fish warned Manu of a flood coming and told him to build a ship. When the flood started, the fish came and Manu tied the ship to it's horn. The fish led him to a northern mountain and told Manu to tie the ships rope to a tree to prevent it from drifting. Manu asked for the power to preserve all existing things. A carp later fell in his hands and the fish told Manu to preserve it.  Manu moved it to larger vessels and eventually moving it to the river Ganga and then to the ocean.  Manu realized it was the god Braham that filled the oceans. It told Manu that yuga was ending and soon everything would be covered in water.  Manu had to preserve all creatures and plants on a ship which he had to built. Manu did what he was told and the flood was only for seven days. Manu's ship remained and preserved all creatures and plants.  In the Epic of Gilgamesh, the gods were mad at the mortals below them so they wanted to kill all of them by causing a flood that lasted six days and six nights. The Hindu flood, was seven days and seven nights. The destruction of the world was for natural things not punishment like in the epic of Gilgamesh. Both stories are alike in some ways like being told by a god(s) that a flood was coming and to build a boat to save other beings. After the flood in the epic of Gilgamesh ended, Utnapishtim released a dove. In the Hindu flood story, Manu did not send a dove.



Source: http://www.ancient-origins.net