The country's foreign exchange reserves declined by $1.76 billion to $630.19 billion in the week ended on February 11, the RBI data showed.
In the previous week ended February 4, the reserves had risen by $2.2 billion to $631.95 billion.
It touched a lifetime high of $642.45 billion in the week ended on September 3, 2021.
During the reporting week, the fall in the reserves was on account of a decline in the foreign currency assets (FCA), a major component of the overall reserves.
FCA dipped by $2.76 billion to $565.56 billion in the week ended February 11.
Expressed in dollar terms, the foreign currency assets include the effect of appreciation or depreciation of non-US units like the euro, pound and yen held in the foreign exchange reserves.
Gold reserves increased by $952 million to $40.23 billion in the reporting week, the data showed.
The special drawing rights (SDRs) with the International Monetary Fund (IMF) increased by $65 million to $19.17 billion, RBI said.
The country's reserve position with the IMF decreased by $16 million to $5.217 billion in the reporting week, the data showed.
Photograph: Mohamed Abd El Ghany/Reuters