Goddess Kalratri has dark black complexion. She rides on a donkey. The Goddess has 4 hands; both right hands stay in Abhaya and Varada Mudra; and the left 2 hands carry sword and a hook weapon.
As the legend goes, there were 2 demons - Shumbha and Nishumbha, who had captured the entire Devlok (holy abode of Devas). The King of the Gods, Indra was defeated badly. In order to get their home back, they sought help from Maa Parvati. While they were explaining the entire story to her, she was bathing inside. In order to help them, she sent Chandi to help them.
When Goddess Chandi went to the demons for war, Shumbha and Nishumbha sent Chanda and Munda to fight. Hence, she created Maa Kalratri to kill them. After killing them, she got the name Chamunda. After that, Raktabeej arrived. This demon had the capability of recreating his body with his blood. Everytime Goddess killed him and his blood spilled on the ground, the demon made a new body for himself. So, Kalratri Durga decided to drink all his blood, so that nothing drops down on the floor; and it actually worked!
There are many other legends associated with Kaalratri. One of them tells how Maa Parvati became Durga. As per that legend, the demon Durgasur was trying to attack Kailash (the holy abode of Shiva-Parvati) in the absence of Maa Parvati. So, she sent Kal Ratri for dealing with him. The guards of the demons tried to attack Kala Ratri, but she grew bigger and bigger in size. Eventually, she got too powerful to handle. Durgasura had to leave, but Maa Kalratri told him that his death is near. Another time when Durgasur tried to attack Kailasha, Maa Parvati fought with him and killed him. Hence, she got the name Durga.
Planet Saturn (Shani) is ruled by the Kalratri Mata. Worshipping her helps in pacifying the ill effects of this planet.
ॐ देवी कालरात्र्यै नमः॥
एकवेणी जपाकर्णपूरा नग्ना खरास्थिता।
लम्बोष्ठी कर्णिकाकर्णी तैलाभ्यक्त शरीरिणी॥
वामपादोल्लसल्लोह लताकण्टकभूषणा।
वर्धन मूर्धध्वजा कृष्णा कालरात्रिर्भयङ्करी॥
या देवी सर्वभूतेषु माँ कालरात्रि रूपेण संस्थिता।
नमस्तस्यै नमस्तस्यै नमस्तस्यै नमो नमः॥
करालवन्दना घोरां मुक्तकेशी चतुर्भुजाम्।
कालरात्रिम् करालिंका दिव्याम् विद्युतमाला विभूषिताम्॥
दिव्यम् लौहवज्र खड्ग वामोघोर्ध्व कराम्बुजाम्।
अभयम् वरदाम् चैव दक्षिणोध्वाघः पार्णिकाम् मम्॥
महामेघ प्रभाम् श्यामाम् तक्षा चैव गर्दभारूढ़ा।
घोरदंश कारालास्यां पीनोन्नत पयोधराम्॥
सुख पप्रसन्न वदना स्मेरान्न सरोरूहाम्।
एवम् सचियन्तयेत् कालरात्रिम् सर्वकाम् समृध्दिदाम्॥
हीं कालरात्रि श्रीं कराली च क्लीं कल्याणी कलावती।
कालमाता कलिदर्पध्नी कमदीश कुपान्विता॥
कामबीजजपान्दा कमबीजस्वरूपिणी।
कुमतिघ्नी कुलीनर्तिनाशिनी कुल कामिनी॥
क्लीं ह्रीं श्रीं मन्त्र्वर्णेन कालकण्टकघातिनी।
कृपामयी कृपाधारा कृपापारा कृपागमा॥
ऊँ क्लीं मे हृदयम् पातु पादौ श्रीकालरात्रि।
ललाटे सततम् पातु तुष्टग्रह निवारिणी॥
रसनाम् पातु कौमारी, भैरवी चक्षुषोर्भम।
कटौ पृष्ठे महेशानी, कर्णोशङ्करभामिनी॥
वर्जितानी तु स्थानाभि यानि च कवचेन हि।
तानि सर्वाणि मे देवीसततंपातु स्तम्भिनी॥
With this, we hope that you will make the best of Navratri’s seventh day. May Kalratri Maa blesses you with all the goodness of life.
Happy Navratri!