अश्वत्थामा बलिर्व्यासो हनुमांश्च विभीषण:। When He's developed at Ravana's court, the demon king seeks to insult Hanuman by denying him the seat that is because of him like a messenger. In reaction, Hanuman lengthens his tail and coils it into a seat that rises Considerably increased than Ravana's throne. https://youtu.be/6cAOQp6Twlc