According to Hindu scriptures, Lord Shiva addressed Goddess Durga in 108 names to please her. Hence, devotees chant the 108 names of Durga during Navratri seeking blessings from her. The 108 names appear in the Purana named Devi Mahatmyam or Devi Mahatmya that narrates Durga's battle with demon king Mahishasura and eventually her win.