Jīn-jù-zhā 金俱吒 (Skt. probably Kuṅkuṭa / Koṅkuṭa — the Chinese transliteration is uncertain and modern scholars have variously reconstructed Kuṅkuṭa / Konkuṭa / Gaṅgāpuṇya; no confident Sanskrit identification exists) — a late-Tang Western Indian brāhmaṇa monk (西天竺國婆羅門僧, as the colophon of his sole known work attests). DILA Buddhist Person Authority A000772. He is known only as the compiler-author of KR6j0539 T1308 Qī-yào ráng-zāi jué 七曜攘災決, the principal Sino-Buddhist Nine-Luminaries divination-and-aversion text of the late Tang.
The colophon describes him as having “called down the deities of the twenty-eight nakṣatras and questioned them concerning auspice and inauspice, drawn their iconographic forms, and arranged the calamity-aversion methods of the Seven Planets accordingly” (命得二十八宿神下，問其吉凶畫其形狀，辨七曜所至攘災法). Nothing else is recorded of his life — no birthplace beyond “Western India,” no monastic affiliation, no travel itinerary, no Chinese disciples.
The text he produced is unusually rich technically: it incorporates Indian planetary ephemeris-tables (tithi-equivalents and lunar-mansion crossings, Mars year-cycles, Jupiter year-cycles, Saturn year-cycles, and especially Rāhu / Ketu node-cycles) of an Indian jyotiṣa tradition close to but not identical with that of KR6j0530 T1299; Yano Michio (1986, 2013) has shown that some of the ephemeris-data preserved in T1308 derive from an Indian source distinct from the Xiù-yào-jīng materials and may represent a late-Tang independent Indian transmission rather than a derivation from the high-Tang Bù-kōng/Yīxíng cycle.
His dating is consequently fixed only by internal evidence: he writes after Bù-kōng’s Xiù-yào-jīng (translated 759, redacted 764) — which his text presupposes — and probably during the period when Indian brāhmaṇa astrologer-monks remained welcome at the late-Tang court, c. 800–880. The conventional dating bracket is “mid-to-late ninth century.”
Source: DILA Buddhist Person Authority A000772; CANWWW T21N1308 colophon; Yano Michio 矢野道雄, “The Ch’i-yao jang-tsai-chüeh and Its Ephemerides,” Centaurus 29 (1986): 28–35; Bill M. Mak, “The Last Chapter of Sphujidhvaja’s Yavanajātaka,” SCIAMVS 14 (2013).