Q. One of my friends recently mentioned about Devi Bhagvatam wherein Devi Bhagvati is mentioned as supreme. She also said that this has been written by Vyasadeva. Can you help me on this.

A. There is no reference in any scripture to something known as Devi Bhagavatam. Bhagavatam refers to Bhagavan and Bhagavan according to all scriptures is Krishna. He is the Supreme. Devi (Durga,Kali,Parvati…!) is just the manifestation of the external energy of Krishna.