When Bharthari was king of 'Ujjayani' (modern-day Ujjain) in his point out there lived a Brahman who after many years of austerities was provided the fruit of immortality from your celestial tree of Kalpavriksha. The Brahman presented the same to his monarch, Raja Bharthari, who consequently, passed it on https://www.youtube.com/watch?v=9jkGrywMWdQ