Dhaka, Oct. 7 -- The central bank purchased US$ 104 million more through auction from 8 banks on the interbank spot market on Monday to keep the exchange rate of the US dollar against the local currency stable.

The amount was bought under the Multiple Price Auction method and rate ranged between Tk 121.78 and Tk 121.80 per dollar, according to the central bank officials.

However, the cutoff rate stood at Tk 121.80 a dollar, compared to Tk 121.75 at the previous auction held on September 22.

The Bangladesh Bank (BB) has so far bought $1.98 billion from banks directly since July 13 last under the prevailing free-floating exchange-rate arrangement, the BB data showed.

"Our ongoing intervention in the foreign-exchange market will continue...