Rama walked backed to his chambers and thought of what he would tell Sita. Leaving her was the only part of his fate that truly upset him, and he could not bear the thought of being without her. As he approached her chambers, he decided he could not bear to look upon her beauty again then have to leave her forever. Rama went to his brother Lakshmana, told him the news, and asked him to inform Sita of his departure and the circumstances surrounding it. Rama then gathered what possessions he would take, and left the city in a disguise so nobody would see him leave.
King Dasharatha on his deathbed, Wikipedia
Bharatha arrived in the city and was crowned as King. As Bharatha was crowned King, an agent of Ravana entered the room disguised as one of the King's guards. Ravana had learned of the situation and decided to seize the opportunity. He sent an agent to assassinate the King, who would then surrender himself to the King's guard. When interrogated, the agent would lie and claim to be working for Kaikeyi. He hoped this would cause a rebellion among the people of the city, and his foes would be weakened by this divide.
The agent of Ravana moved closer to the King as the ceremony drew to a close. Just as the King tried to retire from the crowd, the assassin stuck the King's heart with a dagger. In the aftermath of the killing, the assassin was captured and interrogated. Ravana's plan had worked, and the investigators believed Kaikeyi had planned the killing so she could be Queen. The night before he was to be executed, the agent of Ravana escaped the dungeon. As he was leaving, he spotted Sita. Her beauty was unrivaled, and he decided to kidnap her and offer her to Ravana.
Author's note: This story was inspired by Buck's Ramayana: King Rama's Way. I wanted to tell an alternate version of Rama's banishment and how his quest against Ravana began.
Buck, William (1976). Ramayana: King Rama's Way.
