Hanuman Jayanti is the celebration of birth of Lord Hanuman. His unconditional affection and devotion towards Shri Ram makes him the finest devotee in the world. And Hanuman Jayanti is a celebration of the son of Lord Vayu, the avatar to Lord Vishnu and the follower of Lord Rama who is epitome of devotion, strength and knowledge. On this auspicious day, devotees offer prayers and apply vermilion on his idol and chant Hanuman Chalisa as an honor to Him.