According to a legend from the Brahma Vaivarta Purana, Saraswati, Ganga, and Lakshmi were the three wives of the preserver deity, Vishnu.
[3] In a different legend from the Devi Bhagavata Purana, Lakshmi incarnated herself as Tulasi, the daughter of King Dharmadhvaja.
Shiva fought Shankacuda in a battle, but the latter proved to be an invincible opponent due to his wife's fidelity to him.
[4] A ceremony known as Tulasi Vivaha is performed by Hindus between Prabodhini Ekadashi (the eleventh lunar day of the waxing moon of Kartika) to Kartik Purnima (full moon in Kartika), usually on the eleventh or the twelfth lunar day.
It marks the end of the four-month Chaturmasya period, which corresponds to the monsoon, considered inauspicious for marriages, Spiritual beliefs and other rituals.