Maa Kaalratri is the seventh manifestation of Goddess Durga, and her worship is observed on the seventh day of the Hindu festival of Navratri. Her name, "Kaalratri," translates to "the dark night" in Sanskrit, symbolizing her fierce and destructive aspect.

The Navratri story of Maa Kaalratri highlights her terrifying form and her role as a destroyer of evil.