Hindu Mythology-11

Name the demon who had a boon that no one created by Brahma/that no god who had been born by then would be able to kill him 

Hindu Mythology-10

Answer:

Sage Durvasa / Durvasa maha muni

Story behind:

Rama was having a private conversation with Kaala/Death disguised as an ascetic. Before the conversation began, Kaala gave Rama strict instructions that their dialogue was to remain confidential, and anyone who entered the room and saw or heard them was to be executed. Rama agreed and entrusted Lakshmana with the duty of guarding his door and fulfilling his promise to Death. At the same time Durvasa appears at Rama's doorstep, and seeing Lakshmana guarding the door, demands an audience with Rama. Lakshmana politely asked the sage to wait until Rama had finished his meeting. As he is wellknown for his short temper, the sage grew angry and threatened to curse all of Ayodhya if Lakshmana did not immediately inform Rama of his arrival. Lakshmana, 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 Kaala 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.

Rama was overcome with sorrow, for he did not want to kill his beloved brother, Lakshmana. he had given his word to Kaala and could not go back on it. He called his advisers to help him resolve this quandary. On Vasishta's advice, he ordered Lakshmana to leave him for good. Thus Lakshmana has to leave royal palace and leave Rama for ever. went to the banks of the river Sarayu, resolved on giving up the world through Yoga. Unseen by anyone, Indra took him to heaven.