Complex sentence: Rama, Sita, Lakshman and Sumantra separate and escape from the citizens during the deep night and venture further into the forest towards Sringaverapur after which they meet Guha, the Nishad king.
Split into simpler sentences: Rama, Sita, Lakshman and Sumantra go incognito and in the dead of the night leave the city and move into the forest. They leave for a place called Sringaverapur after which they meet Guha, the Nishad king.