Foreign exchange reserves increased $4.356 billion to $292.672 billion for the week ended February 1, according to data released by the Reserve Bank of India today.Foreign currency assets were up $3.496 billion to $283.041 billion.Gold reserves increased $871 million to $9.199 billion. SDRs were unchanged at $9 million.Reserve Position in the IMF was down $11 million at $423 million.