When I lived in Miraj (मिरज), a town of gymnasiums (तालीम), the day used to be very special.
Wendy Doniger, :
"..Indeed flood myths are found in most of the mythologies of the world: Africa, the Near East, Australia, South Seas, Scandinavia, the Americas, China, Greece. They are widespread because floods are widespread, especially along the great rivers that nurture early civilizations (and even more widespread in the lands watered by the monsoons). There are significant variants: Some cultures give one reason for the flood, some other reasons, some none; sometimes one person survives, sometimes several, sometimes many (seldom none—or who could tell the story?—though the creator sometimes starts from scratch again); some survive in boats, some by other means.
In the oldest extant Indian variant, in the Brahmanas, Manu, the first human being, the Indian Adam, finds a tiny fish who asks him to save him from the big fish who will otherwise eat him. This is an early expression of concern about animals being eaten, in this case by other animals; “fish eat fish,” what we call “dog eat dog,” is the Indian term for anarchy. The fish promises, in return for Manu’s help, to save Manu from a great flood that is to come. Manu protects the fish until he is so big that he is “beyond destruction” and then builds a ship (the fish tells him how to do it); the fish pulls the ship to a mountain, and when the floodwaters subside, Manu keeps following them down. The text ends: “The flood swept away all other creatures, and Manu alone remained here.” The theme of “helpful animals” who requite human kindness (think of Androcles and the lion) teaches two morals: A good deed is rewarded, and be kind to (perhaps do not eat?) animals..."
Noah, a Hollywood film, was released on March 28 2014 in US. There is a lot of debate that is going on whether the real life event influenced the Biblical myth.
Smithsonian.com mentions ten such stories from around the world and the geology that may have influenced them.
One of them is Rama setu.