As the mistake was accomplished by the god Indra, he grants Hanuman a wish that his entire body can be as potent as Indra's Vajra, Which his Vajra can also not harm him. Along with Indra other gods have also granted him wishes: the God Agni granted Hanuman a desire https://collinzzzxw.blogerus.com/58898106/the-fact-about-hanuman-that-no-one-is-suggesting