Forex reserves had declined by $2.82 billion to $287.85 billion in the previous reporting week.
Foreign currency assets (FCAs), a major component of forex reserves, slipped by $3.15 billion at $255.28 billion for the week ended June 28, the RBI data showed.
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FCAs, expressed in dollar terms, include the effect of appreciation or depreciation of the non-US currencies such as the euro, pound and yen, held in the reserves.
The gold reserves remained unchanged at $22.836 billion during the week under review.
The special drawing rights were down by $30.8 million to $4.342 billion during the period, while India's reserve position with the IMF declined by $15.5 million to $2.189 billion, the data showed.