The 3-month yield rose 03 basis points to 7.24 percent, the 6-month yield rose 02 basis points to 7.29 percent and the 12 month yield rose to 7.36 percent, data from the state debt office, which is a unit of the central bank showed.
The state sold 3.0 billion rupees of 3-month bills, 1.85 billion rupees in 6-month bills and 1.9 billion rupees in 12-month bills.
About 21.7 billion rupees of bills were due to mature this week.
Sri Lanka's interest rates have been moving up amid defence of a dollar peg and strong domestic credit growth.
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