Hanuman was one of such four monkeys. This monkey group was instrumental in supplying Rama essential specifics of Sita. They assisted him make a bridge over the seas, and cross more than by using a monkey Military that correctly stormed the demon stronghold and freed Sita. भस्मसादभवदैत्यो दुष्टचेष्टितमन्तकृत् ॥ २३ https://andersonqhzqh.uzblog.net/mohini-an-overview-51273790