According to the initial translation of the Eran inscription (by John Faithful Fleet in 1888), Bhanugupta participated to a non-specific battle in 510 CE (Line 5).

[4][5] Mookerji actually considers, in view of the inscription, that Bhanugupta was vanquished by Toramana at this 510 CE Eran battle, so that the western Gupta province of Malwa fell into the hands of the Hunas at that point.

[6] Verses 3-4 are markedly differently translated, in that ruler Bhanugupta and his chieftain or noble Goparaja are said to have participated in a battle against the "Maittras" in 510 CE, thought to be the Maitrakas (the reading being without full certainty, but "as good as certain" according to the authors).

[1] According to a 6th century CE Buddhist work, the Manjushri-mula-kalpa, "after the death of Budhagupta, two kings in Gupta line were crowned, one in Gauda and the other in Magadha", the latter being probably Narasimhagupta.

According to this work, after Bhanu Gupta had lost Malwa, Toramana continued his conquest to Magadha, forcing Narasimhagupta Baladitya to make a retreat to Bengal.