As the error was done via the god Indra, he grants Hanuman a desire that his overall body can be as robust as Indra's Vajra, and that his Vajra can also not hurt him. As well as Indra other gods have also granted him wishes: the God Agni granted Hanuman https://vashikaranexpert11009.tribunablog.com/top-latest-five-hanuman-aarti-urban-news-47142534