Hanuman assumed Panchamukhi or five-faced variety to destroy Ahiravana, a strong rakshasa black-magician and practitioner of the dark arts through the Ramayana war. Ahiravana, brother of Ravana, experienced taken Lord Rama and Lakshmana to netherworld as captive, and the only solution to destroy him was to extinguish five lamps burning https://oteldirectory.com/listings13289059/detailed-notes-on-krishna