In Chinese he is known as Lung-shu or Lung-Meng. The Chinese traveler I-Tsing places Nagarjuna in the first century A. D. as the contemporary of king Kanishka, both of whome are said to have appeared four hundred years after the Nirvana of Buddha.
Long accounts of Nagarjuna are available in Tibetan literature. There he is shrouded in legend and mystery. 
Nagarjuna is the discoverer of several eye medicines and of the elixieer of life which strengthens the weakening forces of men in old age and prolongs life and happiness. He rescued  starving humanity from famines by exdchanging gold for grain in for off lands.
In this edition Nagarjuna’s Yogaratanmala text with English translation and notes are given.