As the mistake was performed because of the god Indra, he grants Hanuman a wish that his overall body would be as powerful as Indra's Vajra, Which his Vajra could also not harm him. In addition to Indra other gods have also granted him needs: the God Agni granted Hanuman https://johnr630ehi0.bloguerosa.com/35906979/examine-this-report-on-hanuman