As the mistake was done with the god Indra, he grants Hanuman a wish that his overall body will be as strong as Indra's Vajra, and that his Vajra can also not hurt him. Coupled with Indra other gods have also granted him needs: the God Agni granted Hanuman a https://selfbizdirectory.com/listings838124/the-smart-trick-of-hanuman-that-nobody-is-discussing