When Shri Rama was about to leave Ayodhya at the end of his
reign, Lord Rama in his original form of Shri Vishnu ordered
Vibhishana to stay on earth and serve the people and guide them to
the path of truth and Dharma. Hence, Vibhishana is considered one
of the seven immortals, or Chiranjeevins. Lord Vishnu also ordered
Vibhishana to pray the family deity of Rama's natal Sun Dynasty,
Lord Ranganatha.