Simply so, is Ramayana a happy ending?
The Ramayana did not really have a happy ending for Lord Rama. Lack of trust made him put Sita through a loyalty test. Although she was ultimately found to be innocent, she was swallowed by the earth and Rama had to lose her forever. No one is infallible.
Secondly, what happened to Laxman at the end of Ramayan? Lakshman goes to the Sarayu river and gives up his life, to fulfill his brother's promise. As Lakshman is the incarnation of Sheh-Naag on whom Lord Vishnu rests, it was essential for Lakshman to die before Ram so that when Ram gives up his life and returns to Vaikunth as Vishnu, his seat is already ready.
Also question is, where does Valmiki Ramayana end?
This Ramayana ends with the return of Rama and Sita from exile and his ascension to the Ayodhya throne," said Anasuya Bhowmick, lead scholar of the Asiatic Society, who is working with the manuscript.
What happened to Ravana at the end?
After Ravana's demise, Lord Rama asked Vibhishana to marry Mandodari so that she stays the reigning Queen of Lanka and the kingdom prospers under her rule. Mandodari married Vibhishana as an act of statesmanship so that Lanka could be put on the path of growth and righteousness.
