India's foreign exchange reserves tumbled to $138.66 billion in the week ended June 3 as overseas fund inflows into the domestic market slowed down, said the Reserve Bank of India (RBI) Saturday.

This represents a decrease of a whopping $1.17 billion in the country's foreign exchange pile from the previous week, showed the weekly figures issued by the central bank here.

During the week ended June 3, the country's foreign currency assets registered a decrease of $1.22 billion from the previous week to touch $132.73 billion, said the RBI statement.

The central bank said foreign currency assets 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.

Gold reserves registered a fall of $67 million at $4.38 billion during the week ended June 3, said the RBI statement.

The country's reserve position in the International Monetary Fund, which is included in the total foreign exchange reserves since April 2, 2004, on the other hand rose $117 million to $1.55 billion.