In the previous week, the reserves had surged by $1.536 billion to $392.867 billion.
FCAs, a major component of the overall reserves, rose by $964.4 million to $369.723 billion, the data showed.
Expressed in US dollar terms, FCAs include effect of appreciation or depreciation of non-US currencies such as the euro, the pound and the yen held in the reserves.
After remaining stable for past few weeks, the gold reserves declined by $405.7 million to $19.943 billion.
The special drawing rights with the International Monetary Fund (IMF) went up by $8.9 million to $1.504
The country's reserve position with the IMF rose by $13.5 million to $2.277 billion, the apex bank said.
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