As the mistake was completed via the god Indra, he grants Hanuman a desire that his entire body could be as powerful as Indra's Vajra, Which his Vajra could also not damage him. Coupled with Indra other gods have also granted him wishes: the God Agni granted Hanuman a want https://hanumantemplessydney.blogspot.com/2025/03/shani-dev-temple-sacred-space-for.html