Ila (Hinduism) in the context of "Pururava"

Ila (Sanskrit: इल) or Ilā (Sanskrit: इला) is a deity in Hindu legends, known for their sex changes. As a man, he is known as Ila or Sudyumna and as a woman, is called Ilā. Ilā is considered the chief progenitor of the Lunar dynasty of Indian kings – also known as the Aillas ("descendants of Ilā").

While many versions of the tale exist, Ila is usually described as a daughter or son of Vaivasvata Manu and thus the sibling of Ikshvaku, the founder of the Solar Dynasty. In versions in which Ila is born female, she changes into a male form by divine grace soon after her birth. After mistakenly entering a sacred grove as an adult, Ila is either cursed to change his/her gender every month or cursed to become a woman. As a woman, Ilā married Budha, the god of the planet Mercury and the son of the lunar deity Chandra (Soma), and bore him a son called Pururavas, the father of the Lunar dynasty. After the birth of Pururavas, Ilā has transformed into a man again and fathered three sons.