In the previous week, forex reserves had risen by $262.4 million to $352.131 billion.
The foreign currency assets, a major component of the overall reserves, were up $1.708 billion to $329.124 billion for the reporting week, the RBI data showed on Friday.
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 gold reserves remained stable at $19.335 billion.
The special drawing rights with the International Monetary Fund were up by $27.8 million to $4.090 billion, while the country's reserve position with the fund also rose by $9.1 million to $1.325 billion, the RBI data showed.