The total reserves had slipped by USD 92.8 million to USD 296.539 billion in the previous reporting week.
Foreign currency assets, a major component of the forex reserves, were up by USD 63.9 million to USD 262.01 billion for the week ended December 28, the RBI said in its weekly statistical supplement.
Foreign currency assets expressed in US dollar terms include the effect of appreciation/depreciation of the non-US currencies, such as the euro, pound and yen, held in the reserves, the apex bank said.
The gold reserves remained unchanged at USD 27.80 billion during the week, it said.
For the week under review, the special drawing rights (SDRs) were down by USD 15.9 million to USD 4.436 billion, while the country's reserve position with the IMF slipped by USD 8.4 million to USD 2.325 billion, the apex bank data showed.