Global flood is first recorded in the Vedas and thereafter in other cultures.<quoted text>
What you fail to grasp is that almost every culture on Earth has the story of a great flood. Africans; Pacific Islanders; Native Americans; Chinese; Pagan Europeans; etc. Gives it a lot of credibility.
There's no geological evidence to support the same and it is illogical to speak of taking on board the ship single pairs of the tens of millions of species including aquatic and aerial and subterranean forms that were then present and it is silly to assume that these individual pairs restart life after the flood which would result in incest of the worst kind that would wipe out or retard the subsequent generations.
The global flood myth is a mystical event as narrated in my previous post on the subject.