The special drawing rights with IMF declined by $10 million to $1.534 billion.Mumbai: The country's foreign exchange reserves rose by $503.6 million to touch a life-time high of $424.864 billion in the week to April 6, aided by increase in foreign currency assets, the Reserve Bank said today.In the previous week, the reserves had surged by $1.828 billion to $424.366 billion.It had crossed the $400-billion mark for the first time in the week to September 8, 2017, but has since been fluctuating.In the reporting week, the foreign currency assets, a major component of the overall reserves, rose by $657.7 million to $399.776 billion.Expressed in the US dollar terms, the foreign currency assets include the effect of appreciation or depreciation of the non-US currencies such as the euro, the pound and the yen held in the reserves.After remaining stable for past few weeks, gold reserves decreased by $130.7 million to $21.484 billion in the reporting week, the central bank said.The special drawing rights with the International Monetary Fund (IMF) declined by $10 million to $1.534 billion.The country's reserve position with the IMF also decreased by $13.4 million to $2.070 billion, the apex bank said.(Except for the headline, this story has not been edited by staff and is published from a syndicated feed.)