The Sensex opened with a positive gap of 121 points at 20,703. Follow-up selling saw the index slip into the negative zone to a low of 20,506 - down 197 points from the day's open.The index, thereafter, gyrated between zones for most of the trading day. Aggressive buying towards the close saw the index surge to a high of 20,895 - up 389 points from the day's low.The Sensex finally ended (provisional) with a gain of 313 points at 20,895.
