Goddess Durga killed the demon Mahishasur, earning the title Mahishasuramardini (the slayer of Mahishasur). According to Hindu mythology, Durga was created by the combined energies of all gods to defeat the buffalo demon Mahishasur, who could not be defeated by any male deity. Saraswati is the goddess of learning, Indra is the king of gods, and Vishnu is the preserver.