The most ferocious appearance of Durga is in the form of Maa Kaalratri. Devi Kaalratri is the seventh aspect of Durga and Worshiped among Navdurga. She is worshiped on the seventh day of Navaratri. She is believed to be the most violent Devi among Navdurga. She has dark Krishna (black) complexion and her appearance is extremely fearful. Her large red eyes, open red tongue, and saber in hand violently demolish devils and monsters. She is also glorified with the name ‘Kali Maa’.

Devi Kaalratri has three round eyes, and scattered long black hair. She wears a bead that gleams like fire of electric power. Durga manifested herself to completely destroy the dirt and demons from existence. She is revered with name Kaalratri, because she represents herself as a death of Kaal who appeared like a dark night of demons. Donkey is her procession, as she rides on gadarbh. Maa Kaalratri also has four arms. She holds a saber in her upper left hand and thorn of iron in her lower left hand. Her upper right hand is in Var Mudra and lower right hand is in Abhay Mudra.

Her splendor is limitless. She removes any kind of fear in life.  She has a dark complexion, disheveled hair and a fearlessness posture. A necklace flashing lightning adorns her neck. She has three eyes that shine bright and terrible flames emanate from her breath. Her raised right hand always seems to grant boons to all worshipers and all her right lower hand is in the pose of allaying fears.