[14][15][13] Literary sources do not record Sasanian activity and details of their actions in Sindh,[11] and no epigraphic, archaeological or numismatic evidence for the Rai dynasty exists.

[13] However, some scholars view the Chachnama as an original work that claimed to be a translation only for political expediency and doubt the accuracy of the historical narratives contained within the text.

[13] The Rai dynasty, being the penultimate non-Muslim polity in the region and forming the backdrop of the rise of Chach in the Chachnama, received some attention in contemporary scholarship.

[24] Sahiras II met his death while attempting to ward off an invasion by the Sassanian Governor of Nimroz into Kirman; he was admired for not leaving the battlefield, despite being deserted by his forces.

[15] During his regime, Chach, a poor, learned Brahmin, joined the imperial bureaucracy and rose through the ranks quickly, eventually becoming secretary to Rai Sahasi II.

[26][23] However, as Chach gained access to the interiors of the palace, Devi, in an unfulfilling relationship with an ageing Sahasi II, began to grow enamoured of him and proposed marriage.

[15][27] While Chach did not consent to it, fearing incurring the King's wrath and also swerving further away from the scriptural ideals of a Brahminical life,[g] he did acced to her request to provide companionship, and their relationship continued to blossom.

[29] According to the Chachnama, he reluctantly conceded to Devi's plan and the news of Sahasi II's death was withheld from the public; meanwhile, she incited the familial claimants to the throne in a fatal internecine conflict.

[30] However, the news of the King's death somehow made way to Sahasi II's brother, Rai Mahrit, ruler of Chittor, who claimed the throne and mounted a military offensive.