The six month yield rose 44 basis points to 7.95 percent and the 6-month yield rose 64 basis points to 8.18 percent.
The 12-month yield rose 91 basis points to 8.50 percent from two weeks earlier. Last week the debt office, which is a unit of the Central Bank rejected all offers.
The debt office said 3.0 billion rupees in 3-month bills were sold, 2.0 billion rupees in 6-month bills were sold and 3.0 billion in 12-month bills were sold.
Earlier in the day 3-month gilt repos traded around 8.50 percent dealers said.
There is uncertainty in Sri Lanka's bond markets following a devaluation announcement in the budget and liquidity has dried up with and no quotes for several maturities.
Following the auction there were quotes for a bond maturing in 2015 at around 10.25/11.00 percent, dealers said.
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