In the previous week, the reserves had increased by USD 1.81 billion to USD 476.47 billion.
The reserves had touched a life-time high of USD 487.23 billion in the week to March 6, after it rose by USD 5.69 billion.
During 2020-21, the country's foreign exchange reserves had risen by almost USD 62 billion.
In the reporting week ended April 17, foreign currency assets (FCA), a major component of the overall reserves, rose USD 1.55 billion to USD 441.88 billion.
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.
The gold reserves increased USD 1.54 billion to USD 32.68 billion in the reporting week, the RBI data showed.
Special drawing rights with the International Monetary Fund (IMF) were up by USD 3 million to USD 1.43 billion.
The country's reserve position with the IMF remained stable at USD 3.58 billion during the reporting, the data showed. HV HRS