aṃkhyā system of word numerals. The text does not say anything about the year and place of Āryabhaṭa II's birth, nor does it give any other personal information. In recent years several scholars have tried to establish an approximate period in which he lived based on the cross‐references to his work made by other contemporary and younger scholars. D. Pingee believed that Āryabhaṭa II's treatise was written between 950 and 1100, and G. R. Kaye concludes that he lived before Bīrūnī (973circa 1050). However, B. Datta disagrees with the date given by Kaye and argues that Āryabhaṭa II must have lived much later. Many recent articles on this subject state that his main work was written in 950. Brahmagupta (born: 598) leveled several criticisms on Āryabhaṭa I but not on Āryabhaṭa II. S. Dikshita has therefore put forward the argument that places Āryabhaṭa II later than Brahmagupta. Another important point noted is that Āryabhaṭa II tried to remove some discrepancies involving the criticism of Brahmagupta on Āryabhaṭa I. Thus Dikshita assigns him a date around śātavāhana śaka 875, which corresponds to 953. This corroborates the opinions of other historians as well.
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Dikshit, S. B. (1896). Bhāratīya Jyotisha. Poona. (English translation by R. V. Vaidya. 2 pts. New Delhi: Government of India Press, Controller of Publications, 1969, 1981, pp. 9599.)
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Pingree, David (1970). Āryabhaṭa II. In Dictionary of Scientific Biography, edited by Charles Coulston Gillispie. Vol. 1, pp. 309310. New York: Charles Scribner's Sons.
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