As the error was completed via the god Indra, he grants Hanuman a would like that his overall body can be as powerful as Indra's Vajra, Which his Vajra can also not harm him. As well as Indra other gods have also granted him wishes: the God Agni granted Hanuman https://www.evernote.com/shard/s419/sh/6a889767-8366-2859-209a-27f76435e3d9/SEjCBSmcZ4ihvDByLdve7Jm7XW709KLPopkk-5zDM8ePfBjesj7u-S0x6Q