 The Eran stone pillar inscription of two brothers, Matrivishnu and Dhanyavishnu mentions Budhagupta as their emperor ("Bhupati"), under whom "Maharaja" Surashmichandra was governing the land between the Yamuna and the Narmada The Budhagupta inscription on the Eran column is on the west face towards the bottom of the lower and square part of a large monolithic red-sandstone column situated near the ruined group of temples at Eran.The inscription refers to the reign of Budhagupta over the area "between the rivers Kâlindi and Narmadâ", and it is dated 484–485 CE.The object of it is to record the erection of the column, which is called 'dhvajastambha' or flag staff of the god Vishnu.