The central bank said FCA in US dollar terms included the effect of appreciation or depreciation of non-US currencies held in reserve, such as the pound sterling, euro and yen.
Gold reserves value had dipped by $386.2 million and stood at $27.80 billion. The value had remained unchanged at $28.18 billion since the week ended Nov 2, when the value of gold reserves rose by $56.4 million.
The special drawing rights (SDRs) increased by $26.9 million to $4.42 billion during the week under review, while reserves with the International Monetary Fund (IMF) were up by $13.7 million to $2.26 billion.
The SDRs had increased by $4.8 million to $4.40 billion during the week ended Nov 23 while reserves with the IMF had gone up by $2.5 million to $2.25 billion.