Gold and silver edged lower in electronic trade

Gold futures fell during electronic trading this Thursday after Ben Bernanke's, U.S. Federal Reserve Chairman, testimony to the Congress. Gold prices for August delivery tumbled $12.10, a 0.7 per cent decrease, to $1,622.10 an ounce in trading session of the New York Mercantile Exchange's Comex division. Silver futures for July delivery slipped 29 cents, a 1 per cent decline, to $29.20 an ounce.