According to Hindu mythology, Mahishasura in some versions was a combination of both an Asura and a Mahisha, with trident reside in west.
He intended to annihilate all the Devas since they were the arch enemies of Asuras. However, he was a devotee of Brahma, from whom he gained his strength, through penance, and a disciple of the Brahmin Shukracharya.
The legend of Mahishasura is important in Hindu mythology since the goddess Durga was incarnated in order to slay him. Therefore, his story is an important part of shaktiism which venerates the goddess Durga.
Mahishasura also appears in Buddhist art within a Lakshana Devi temple shown being slain by the goddess in Chamba and at Hatkoti being slain by Vajeshvari Devi, as well as at sanctuary at Tapa Sardar near Ghazni, Afghanistan, and in Central Tibet, as a demon being slayed by goddess Durga.