How did Hanuman served Lord Rama?
To cut the long story of Hanuman short, he then introduced Rama to Sugriva, and began his massive search for Sita. Finding out her whereabouts, he consoled Sita, and burnt down the city of Lanka. Hanuman then brought Rama to Lanka, fought the battle against Ravana with his simian army, and vanquished the demons. Hanuman’s greatest feat was saving the life of Lakshmana by fetching the life-giving herb “Sanjivani” from the Himalayas. He flew fast towards the Himalayas, but unable to recognize the right herb, picked up the whole mountain on his hand and flew back to Lanka, just in time to save Lakshmana. Thereafter Hanuman served Rama forever.