The average yields on the three-year bonds rose to 18.382 percent from 18.271 percent at the last auction on June 12, while the seven-year bond yields dipped to 18.346 percent from 18.377 percent.

At another auction on Wednesday, the average yield on the 182-day bill rose to 20.413 percent from 20.384 percent at the last sale on June 15, while the yield on the 364-day bill rose to 20.390 percent from 20.307 percent at a previous auction.