About Maa Kaalratri Day 7 of Navratri is dedicated to the worship of Maa Kaalratri. She is another terrifying form of Goddess Durga. Devi Kaali is one of her other names. Maa Kaalratri is recognized as the Goddess who brings an end to darkness by killing all the negativeness. She is also known for killing ghosts, evil spirits, and demon entities. Shubhankari is another name of Maa Kaalratri as she is believed to bring auspicious news. Maa Kaalratri is also known as Chamunda since he fought and killed the demons, Chand and Munda. Later she also killed the powerful demon Raktabeej.