Hanuman assumed Panchamukhi or 5-confronted variety to kill Ahiravana, a powerful rakshasa black-magician and practitioner on the darkish arts during the Ramayana war. Ahiravana, brother of Ravana, had taken Lord Rama and Lakshmana to netherworld as captive, and the only approach to kill him was to extinguish five lamps burning https://www.youtube.com/@Mahavidyabaglamukhi