India's foreign reserves jumped by $650 million to $289.461 billion for the week ended September 12 from $288.811 billion in the previous week.
During the week, the foreign currency assets increased by $676 million to $280.302 billion as compared to $279.626 billion in the previous week, RBI said in its weekly report.
FCAs expressed in US dollar terms include the effect of appreciation or depreciation of non-US currencies such as Euro, Sterling and Yen held in reserves.
The gold reserves and special drawing rights, during the week remained static at $8.692 billion and $4 million respectively, the central bank said.
For the period under review, the country's reserves in the International Monetary Fund, declined steeply by $26-million to $463 million from $489-million in the previous week, the RBI said.