As the error was completed through the god Indra, he grants Hanuman a want that his entire body will be as robust as Indra's Vajra, and that his Vajra can also not harm him. As well as Indra other gods have also granted him needs: the God Agni granted Hanuman https://fernandoperoc.blogerus.com/58873466/the-fact-about-hanuman-that-no-one-is-suggesting