Sensex rallies over 300 points in early trade; Nifty tops 18,200

Sensex plunges over 700 points in early trade; Nifty sinks below 17,700

Sensex drops over 100 points in early trade; Nifty slips below 18,100

The 30-share index opened on a positive note but soon pared the gains and was trading 114.93 points or 0.19 per cent lower at..