Hanuman Chalisa Was composed by Tulsidas, a 16th-century poet-saint who was also a philosopher and reformer. Tulsidas is additionally renowned because the composer of Ramcharitmanas for his devotion to Shri Rama. In some versions of your Mahabharata, he can also be revealed for being current about the battlefield of Kurukshetra, https://www.youtube.com/watch?v=ufkmD95y7fE&t=1s