The Sensex opened with a negative gap of 50 points at 20,637, and dropped to a low of 20,438 points in early trades.The index bounced strongly on buying in heavyweights like ICICI Bank, Reliance and ITC, and hit a high of 20,862 in noon deals - an intra-day swing of over 400 points.The Sensex finally closed (provisional) with a gain of 140 points at 20,827.The Sensex had closed with a gain of 342 points at 20,687 on Friday.
