The Reserve Bank said today that forex reserves fell by 1.12 billion dollar to 276.26 billion dollar in the week to September 27. The reserves had jumped 2.03 billion dollar to 277.38 billion dollar in the previous week.The apex bank said foreign currency assets declined by 1.29 billion dollar to 247.924 billion dollar for the week under review.Foreign currency assets expressed in dollar terms include the effect of appreciation or depreciation of the non-US currencies such as the euro, pound and yen, held in the reserves, the apex bank said.