[9] According to the medieval historian Ferishta, his obscurity makes it difficult to track his origin, but he is nonetheless stated as of Afghan birth.
[13] Historians have not found any corroboration for the legend,[14][15] but Ziauddin Barani, who was the court chronicler of Sultan Firuz Shah, as well as some other scholars also called him Hasan Gangu.
[16] Ferishta mentions that later poets "who wanted to flatter him" called Hasan a descendant of Bahram Gur, but considers it implausible.
[26] Ala-ud-din Bahman Shah aspired to expand his dominion as far as Rameshwaram, Ma'abar, or the Coromandel Coast, and subsequently aimed to conquer territories such as Malwa, Gujarat, Gwalior, and Delhi itself.
However, his advisor, Malik Saifuddin Ghori, cautioned against this endeavor, citing the dense jungles and challenging terrain in the southern regions as unsuitable for a successful campaign.
[27] The initial campaign was led by Gurshasp, who learned en route to Kodgir that the Tughlaq garrison stationed at Qandhar had switched allegiance to a new ruler, prompting the Hindu general Akraj to flee into the forests.
[30] Bahman Shah led his first campaign against Warangal in 1350 and forced its ruler Kapaya Nayaka to cede to him the fortress of Kaulas.
By the time of his death the kingdom stretched from north to south from the Wainganga River to Krishna and east to west from Bhongir to Daulatabad.