[5] Shapur I's inscription at the Ka'ba-ye Zartosht in Naqsh-i-Rustam, which is dated to 262, had "P'rtu"/"Pardan" as one of the many provinces of the Sasanian Empire:[9]And I [Shapur I] possess the lands: Fars Persis, Pahlav [Parthia] ... and all of Abarshahr [all the upper (eastern, Parthian) provinces], Kerman, Sakastan, Turgistan, Makuran, Pardan Paradene, Hind [Sind] and Kushanshahr all the way to Pashkibur [Peshawar?]

[10]In 1926 and 1927, Aurel Stein commanded an excavation at the ruins of a Buddhist site at Tor Dherai in Loralai and discovered potsherds carrying Prakrit inscriptions in Brahmi and Kharosthi scripts.

Tandon accepts Mukherjee's theory all of these names refer to the same entity, who gave rise to the dynasty; he cites Datayola's coin-inscriptions in support.

[17] Tandon challenges this "implicit consensus" and hypothesizes Shapur I's inscription to have listed regions in a geographical order from west to east — thus, Pardan falls between the inexact provinces Makran and Hind.

[23] Two overstrikes by Datayola— the last extant Parataraja ruler—on coins of the Kushano-Sasanian ruler Hormizd I provide a terminus post quem of c. 275 CE[23] Accepting this schema allots about 15 years per ruler, which fits with the norms for ancient dynasties; additionally, Koziya can be assigned to about c. 230, whose incorporation of a bust adorning a curved hem on the coin obverse can be correlated to the contemporaneous Kanishka II.

Yolamirasa Bagarevaputrasa Pāratarājasa The frequent referencing of Mithra, a Hindu deity, in the names of the rulers lends credence to the origins of the Paratarajas lying in the Far West.

[36] Tandon said the Paratarajas may have been Parthian vassals who declared independence, leveraging the weakening of imperial authority and a burgeoning trade with the Roman Empire.

[37] Their fall can be correlated to the well-corroborated decline in Indo-Roman trade volume beginning in the mid-3rd century and then, Shapur II's devastating Eastern Campaign.

[36][g] Coins carrying an inscription of "śrī rājño sāhi vijayapotasya" ("Of the noble Lord, King Vijayapota") on the reverse have been found around Loralai; based on the presence of a crescent at the brow of the obverse bust, a terminus post quem of c. 400 corresponding to Sassanian shahanshah Yazdegerd I can be assigned.

[38] Despite a marked contrast in the legend and the long gap from Datayola, the common use of the swastika as the central motif on the reverse and a similarity in metrological standards led Tandon to hypothesize Vijayapotasya might have been either a Parataraja or a ruler from a successor dynasty that exercised nominal independence despite the strong presence of Sassanians in the region.