The US dollar on Wednesday was sold in the kerb market at the rate of Tk108.5, after a record high of Tk112 on Tuesday.
The price of the dollar in the kerb market was Tk105-106 on Monday.
The price later increased by almost Tk6 in a day.
Due to the low supply compared to the country's demand, the price of the US dollar has been increasing in the open market as well as the interbank market.
Since 1 July of the current fiscal year, more than $700 million has been sold from the reserve.
Earlier on Thursday, the central bank depreciated taka by Tk0.50 to Tk94.45 against the dollar.
In the last one and a half months, taka has lost value by Tk5.70, according to data from the Bangladesh Bank.
At the beginning of June, the interbank exchange rate was Tk89 per dollar.