Goddess Vasudevabhagini means one who is the sister of Vasudeva
– Narayana or Vishnu. So who is the sister of Narayana? It is Goddess Durga.
Thus Vasudevabhagini is another name of Goddess Durga.
It is in Harivamsha that Goddess Durga is called Vasudevabhagini.
She is also referred as Narayanapriya in Harivamsha. Vasudeva is one among the numerous names of Vishnu and Bhagini means sister.
Secular scholars are of the view that the concept of Vasudevabhagini
was part of a failed attempt to get the Shakti cult especially Durga and her
worship under the patronage and protection of Vishnu.
However, this did not happen and today; Goddess Durga is closer
to Shaivite cults.