As The mistake was finished with the god Indra, he grants Hanuman a want that his entire body will be as potent as Indra's Vajra, Which his Vajra could also not damage him. Along with Indra other gods have also granted him wishes: the God Agni granted Hanuman a want https://shanidevtempleadelaide.blogspot.com/2024/07/exploring-spiritual-haven-hanuman.html