India's forex reserves jumped $4.04 billion to $698.27 billion during the week ended September 5 on the back of a sizeable increase in value of gold reserves, the RBI data said on Friday.
In the previous reporting week, the overall reserves had jumped by $3.51 billion to $694.23 billion.
For the week ended September 5, foreign currency assets, a major component of the reserves, increased by $540 million to $584.48 billion, the data showed.
Expressed in dollar terms, the foreign currency assets include the effect of appreciation or depreciation of non-US units like the euro, pound and yen held in the foreign exchange reserves.
The gold reserves increased by $3.53 billion to $90.3 billion during the week, the data said.
The Special Drawing Rights (SDRs) were down by $34 million to $18.74 billion, the apex bank said.
India's reserve position with the IMF was up by $2 million at $4.75 billion in the reporting week, the Reserve Bank data showed.