Kalratri Kavach (Kalaratri Mata Kavacham) is a prayer dedicated to Goddess Kalratri, seventh among Navadurga Goddesses (Nine aspects of Goddess Durga).
Maa Kalratri Puja is observed on seventh day of Navratri – in Vasant Navratri (Chaitra Navratras) and Ashwin Navratri (Sharad Navratras).
Seventh day of Navratri is also observed as Maha Saptami or Durga Saptami Puja.
Here are the lyrics of Kalratri Kavach….
Om Kalee me Hrudhya Patu Padau Shrikalratri |
Lalate satatm paatu dushtagrah nivaarinee ||
Rasna Patu koumari, Bhairvi Chakshunormam |
Houprushtha Maheshaanee, Karnoshankarbhamini ||
Varjitani Tu Sthanabhi Yani Cha Kavachen hi |
Tani Sarvani Me Devisatatanpatu Stambhini ||
During Chaitra Navratri, Kalratri Puja of Navratri 2020 is on 31 March and in Sharad Navratri it is on 23 October.