Durvasa Maharishi

In the Uttara Kanda of Valmiki's Ramayana, Durvasa appeared at Rama's doorstep and, seeing Lakshmana guarding the door, demanded an audience with Rama. Meanwhile, Rama was having a private conversation with Yama (the god of death) disguised as an ascetic. Before the conversation, Yama gave Rama strict instructions that their dialogue was to remain confidential and anyone who entered the room was to be executed. Rama agreed and entrusted Lakshman with the duty of guarding his door and fulfilling his promise to Yama.

Thus, when Durvasa made his demand, Lakshman politely asked the sage to wait until Rama had finished his meeting. Duevasa grew angry and threatened to curse all of Ayodhya if Lakshman did not immediately inform Rama of his arrival. Lakshman, in a dilemma, decided it would be better that he alone die to save all of Ayodhya from falling under Durvasa's curse and so interrupted Rama's meeting to inform him of the sage's arrival. Rama quickly concluded his meeting with Yama and received the sage with due courtesy. Durvasa told Rama of his desire to be fed and Rama fulfilled his guest's request, whereupon the satisfied sage went on his way.[11]

Rama was filled with sorrow, for he did not want to kill his beloved brother, Lakshman. Still, he had given his word to Yama and could not go back on it. He called his advisers to help him resolve this quandary. On Vasishta's advice, he ordered Lakshman to leave him for good, since such abandonment was equivalent to death as far as the pious were concerned. Lakshman then went to the banks of the Sarayu, resolved on giving up the world by drowning himself in the Sarayu river