My answer covers personifications and deities of wisdom and ignorance from Hindu or Hinduism mythology point of view.
In Hinduism mythology, there are various gods/goddesses which are associated with wisdom, learning and knowledge etc. , most prominently Hindu god Ganesha, goddess Saraswati, goddesses Gayatri etc. and lot's of stories about these deities of ...
This "falling from grace" story did not originate with Christianity. Take Tantalos for example, or Zeus banishing Hades to the underworld.
As for earlier "fruit-picking" mythology, there's the story of the Monkey King stealing the peaches of eternal life from the Jade Palace in Chinese mythology.