masan dvadasa hayanam
kartike carame ’hani
etena—with this; puja-vidhina—regulated worship; masan dvadasa—twelve months; hayanam—a year; nitva—after passing; atha—then; uparamet—should fast; sadhvi—the chaste wife; kartike—in Karttika; carame ahani—on the final day.
The chaste wife must perform such devotional service continuously for one year. After one year passes, she should fast on the full-moon day in the month of Karttika [October–November].
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