Hanuman assumed Panchamukhi or five-faced variety to kill Ahiravana, a strong rakshasa black-magician and practitioner in the dim arts over the Ramayana war. Ahiravana, brother of Ravana, experienced taken Lord Rama and Lakshmana to netherworld as captive, and the only real way to destroy him was to extinguish five lamps https://az-directory.com/listings13314568/krishna-an-overview