The US Federal Reserve’s announcement on quantitative easing on Wednesday created mayhem in global markets, including India. 28 out of 30 Sensex scrips closed down and investors lost wealth worth Rs 1.57 lakh crore in a single day. Sensex nosedived by 526.41 points or 2.74 per cent to 18,719.29, registering its biggest single day fall since September 2011.