As the mistake was carried out through the god Indra, he grants Hanuman a want that his human body can be as solid as Indra's Vajra, Which his Vajra can also not harm him. In addition to Indra other gods have also granted him wishes: the God Agni granted Hanuman https://hanuman-shabhar-mantra95927.blogpostie.com/58255361/the-smart-trick-of-hanuman-that-nobody-is-discussing