Goddess Kaalratri will be worshipped on the seventh day of Navratri (Saptami) on October 12. The nine-day festival of Navratri is dedicated to nine forms of goddess Durga, namely Shailaputri, Brahmacharini, Chandraghanta, Kushmanda, Skanda Mata, Katyayani, Kaalratri, Mahagauri, and Siddhidatri.
Maa Kaalratri known to be the fiercest form of goddess Durga, rides a donkey and has dark complexion and long untied hair. She is depicted wearing a garland of skulls around her neck, drenched in blood and with four hands. She holds a thunderbolt and a scimitar in two of her hands while the other two hands are in abhaya (protecting) and varada (blessing) positions.