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The text refers to the Shaka year 427, which corresponds to 505 CE.[1] Indian writers on astrology and astronomy generally chose an epoch year close to the date of composition of their texts, in order to facilitate correct astronomical calculations.[2] Thus, 505 CE was most probably the year in which Var?hamihira composed Pancha-Siddhantaka or began planning it.[3] The writings of both Var?hamihira and his commentator Utpala suggest that the text was Var?hamihira's first work.[4] <
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