As the error was done by the god Indra, he grants Hanuman a would like that his body would be as robust as Indra's Vajra, and that his Vajra also can not harm him. As well as Indra other gods have also granted him wishes: the God Agni granted Hanuman https://freekundli23444.anchor-blog.com/17359723/the-fact-about-hanuman-that-no-one-is-suggesting