In the previous week, the reserves had increased by $ 1.497 billion to $ 398.178 billion.
In the reporting week, foreign currency assets, a major component of the overall reserves, rose by $ 1.280 billion to $ 373.430 billion.
Expressed in US dollars, foreign currency assets include the effect of appreciation or depreciation of non-US currencies such as the euro, pound and yen held in the reserves.
The reserves had touched a record high of $ 426.028 billion in the week to April 13, 2018. Since then, the forex kitty has been on a slide and is now down by over $ 31 billion.
Gold reserves increased by $ 764.9 million to $ 22.686 billion in the reporting week, the data showed.
The special drawing rights with the International Monetary Fund (IMF) rose by $ 6.2 million to $ 1.470 billion.
The country's reserve position with the IMF also increased by $ 11.2 million to $ 2.654 billion, the apex bank said.