As the error was carried out via the god Indra, he grants Hanuman a want that his overall body might be as strong as Indra's Vajra, and that his Vajra can also not harm him. Along with Indra other gods have also granted him wishes: the God Agni granted Hanuman https://indiantempleadelaide.health.blog/2024/08/08/discover-the-spiritual-haven-of-hanuman-temple-adelaide/