In the previous reporting week, the forex reserves had increased by $2.788 billion to $343.2 billion.
FCAs, a major part of the overall reserves, increased by $1.4 billion to $320.26 billion during the week, the RBI data showed.
Foreign currency assets, expressed in dollar terms, include the effect of appreciation and depreciation of non-US currencies such as the euro, pound and the yen, held in the reserves.
The country's gold reserves remained stable at $19.03 billion in the reporting week.
The special drawing rights with the International Monetary Fund was marginally up by $0.2 million to $4 billion, while the country's reserve position with the IMF remained stable at $1.29 billion, the data showed.
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