Lakshmi is known to be the daughter of the mother Goddess Durga, and the wife of Vishnu, whom she accompanied, taking different forms in each of his incarnations. To understand the story of the birth of Goddess Lakshmi, let us throw some light on Vishnu Puranas.
The story begins with a meeting between Sage Durvasa and Lord Indra. Sage Durvasa, with a lot of respect, offers a garland of flowers to Lord Indra. Lord Indra takes the flowers and places it on the forehead of his elephant, Airavat. The elephant takes the garland and throws it down on the earth.