• In list of South Asian pundits in Bu ston's History (1989), p. 281.1.
• In list of Later Spread (Phyi dar) period pundits in Tibet contained in Zhu chen, Bstan 'gyur dkar chag, p. 161, line 7.
• Indian pundit in Tibet in latter half of 10th century. Mtshan-tho, no. 35.
• No doubt the same as Padma gsang ba, Indian pundit who came to Tibet about 20 years before Atiśa.
• Lahuli, Thon mi, p. 69. Suggests that Padmagupta's name was [also] Padmākaragupta.

Bibliography:

• Navasāhasāṅkacarita.
  • Navasāhasāṅkacarita (Nava·sáhasanka and the Serpent Princess). A forthcoming translation by Somadeva Vasudeva, from the Clay Sanskrit Library.