As the error was done with the god Indra, he grants Hanuman a wish that his human body might be as powerful as Indra's Vajra, and that his Vajra could also not damage him. As well as Indra other gods have also granted him needs: the God Agni granted Hanuman https://vashikaran83737.blogchaat.com/37179572/the-fact-about-hanuman-that-no-one-is-suggesting