How does Parvati become Durga?

As it clearly says Durga as Mother of Skanda. So, she is same as Parvati. It becomes more clear in Virata Parva section of Mahabharata: O, Kali, O Kali, thou art the great Kali, ever fond of wine and meat and animal sacrifice. read more

Goddess Parvathi took the fierce form Durga. To Kill the demon Mahisasura Because he got a boon that he could only be killed by women. Goddess Durga is created with the combined energy of trinities- lord Brahma, Vishnu, Shiva and other gods. read more

Durga is a demon-fighting form of Parvati, and some texts suggest Parvati took the form of Durga to kill the demon Durgamasur. Kali is another ferocious form of Parvati, as goddess of time and change, with mythological origins in the deity Nirriti. read more

Goddess Parvati name means mountain as the Sanskrit word for “Parvati” is “parvat”. She is the consort of Lord Shiva and mother to Lord Kartikeya and Lord Ganesha. She is the reincarnation of Sati who was the first wife of Lord Shiva. There is quite an interesting story regarding the birth and marriage of Goddess Parvati. read more