Hanuman was just one of such four monkeys. This monkey team was instrumental in giving Rama key information regarding Sita. They helped him make a bridge through the seas, and cross above which has a monkey army that productively stormed the demon stronghold and freed Sita. भस्मसादभवदैत्यो दुष्टचेष्टितमन्तकृत् ॥ २३ https://www.facebook.com/share/1J6iVuTuXb/