The nine-day festival begins this year on October 3. Each day is devoted to one of Ma Durga's nine avatars -- Goddess Shailputri, Goddess Brahmacharini, Goddess Chandraghanta, Goddess Kushmanda, Goddess Skandamata, Goddess Katyayani, Goddess Kalaratri, Goddess Mahagauri and Goddess Siddhidatri.