Hanuman Pratyangira" is not a specific, single deity or combined incarnation. Instead, it refers to the relationship and interactions between Lord Hanuman and the powerful Hindu Goddess Pratyangira Devi (also known as Nikumbala, Narasimhi, or Atharvana Bhadrakali), as described in the epic Ramayana.
Goddess Pratyangira is a fierce aspect of the Divine Mother, depicted with a lion's face and a human body, known as the ultimate protector against severe negative energies and black magic.
