Country's foreign exchange reserves surged by 1.7 billion US dollars to touch a record high of 353.8 billion dollars in the week to May 15, helped by the increase in foreign currency assets. According to the RBI data released yesterday, in the previous week, forex reserves had risen by 262.4 million dollars to 352.1 billion dollars.The RBI data said that the foreign currency assets, a major component of the overall reserves, were up 1.7 billion dollars to 329.1 billion dollars for the reporting week.The gold reserves remained stable at 19.3 billion dollars.