The country's forex reserves came down to $34.47 billion after Bangladesh paid $1.3 billion in import payment to the Asian Clearing Union (ACU) for the September-October period on Monday.
In the last four months of the current fiscal year, the central bank sold $5.14 billion from the reserves.
The amount stood at $41.82 billion at the beginning of FY23, according to Bangladesh Bank data.
The ACU is a payment arrangement between the central banks of Bangladesh, Bhutan, India, Iran, Myanmar, Nepal, Pakistan, Sri Lanka and the Maldives.
The payment gateway covers monetary transactions by its member countries for regional imports.
The bills are cleared every two months.
The overall imports, including from the Asian countries, have been declining gradually since July, according to central bank data.
The ACU import bill dropped to $1.75 billion in the July-August period in contrast to $1.96 billion in May-June, according to the Bangladesh Bank.
But the country's foreign currency reserve still remains under strain, owing to dollar sales by the central bank for essential imports.
To boost remittances, banks raised the rate for dollars sent by doctors, engineers, lawyers, bankers, nurses and other expatriates holding white collar jobs by Tk7.5 to Tk107.
They previously got Tk99.5 per dollar.
Amid the ongoing dollar crisis, the country's exports have also been declining for the past two months. Exporters fetched the country $4.35 billion in October, which was 7.85% low year-on-year, according to the Export Promotion Bureau (EPB).
Bangladesh Bank spokesperson Md Abul Kalam Azad told UNB that the liabilities of import payment are decreasing gradually after reining in opening of import LCs.
US$1.35 billion in ACU bill has been paid in September-October. Earlier, Bangladesh had to pay $1.73 billion for July-August period and $1.96 billion during May-June, he said.
According to the suggestion of International Monetary Fund (IMF), if $8 billion used as export development fund is excluded from the foreign exchange reserves, then the reserves stand at $26.3 billion.