The forex reserves rose $643.2 million to reach $317.036 billion in the week to July 11, due to rise in currency assets.
In the previous week, reserves had risen by $614.6 million to $316.393 billion.
With this, the reserves are close to the record high reported in late 2011 at $321 billion.
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FCAs, expressed in dollar terms, include the effect of appreciation/depreciation of the non-US currencies such as the euro, pound and yen held in reserves.
The gold reserves remained unchanged at $20.634 billion in the reporting week.
The special drawing rights were down $4 million to $4.463 billion, and the country's reserve position with the IMF also dipped $1.5 million to $1.717 billion in the period under review, the central bank said.