Chapter 9 of Devi Mahatmyam describes the killing of the demon, Nishumbha, by Goddess Chandika. The Devi Mahatmyam comprises chapters 81-93 of the Markandeya Purana. It narrates the stories and exploits of Durga in her fight against the demons. Devotees chant these verses during Durga Pooja to invoke the Goddess’ blessings and protection.
‘Om Namah Shivaya’ is a highly Sacred Mantra. It is dedicated to Shiva, the Supreme God of Dissolution, and salutes ‘the auspicious one.
Rudra is the fierce form of Shiva, who is kind-hearted and merciful.
This is an ancient Shiva Mantra of healing. It hails Shiva as the conqueror of death and the destroyer of problems