Kalaratri, the seventh form of Durga, is known for destroying ignorance and removing darkness from the universe. Kalaratri or Shubhamkari – is the violent form of Goddess Durga.
It is said that she licked the blood of demon Rakta Beeja, who had the potential to create demons from his blood.This form of Goddess depicts the darker side of life. On seventh day the goddess is worshiped as 'Kaalratri' and devotees offer jaggery to her.
The incarnation of Goddess Durga looks like a ‘Kaal-ratri' means a dark moonless night and has fearsome appearance. Kalaratri is derived from ‘Kaal' which means time and ‘Ratri' which stands for night. She is also known as ‘Kaali Maa'.
Goddess Kalratri should be worshipped with this mantra-
1- Ya devi Sarvabhuteshu Maa Kalratri Rupenu Sansthitan
Namastaseya Namastaseya Namastaseya Namo Namah
2- Ek Vaidhi Japakrinpura Nagna Kharasthita
Lamboshti Karnikakani Tailabhayashareerini
Vardhanmudhardhawaja Krishna Kalratribhayankari