India's foreign exchange reserves dipped lower by $160 million during the week ended December 17, for the fourth week consecutively.

The Reserve Bank of India's forex reserves decreased to $635.667 billion from $635.828 billion during the week ended December 10.

India's forex reserves comprise foreign currency assets (FCAs), gold reserves, SDRs, and the country's reserve position with the IMF.

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An Indian forex dealer counts US $100 currency notes in Mumbai on August 25, 2015.INDRANIL MUKHERJEE/AFP/Getty Images

On a weekly basis, FCAs, the largest component of the forex reserves, edged lower by $645 million to $572.216 billion.

However, the value of the country's gold reserves rose by $475 million to $39.183 billion.

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U.S. dollar notes are seen in front of a stock graph in this November 7, 2016 picture illustration.Reuters file

The SDR value remained static at $19.089 billion, while the country's reserve position with the IMF rose by $9 million to $5.179 billion.