Microsoft Outage: Sensex Tumbles 738.81 Points To Settle At 80,604.65; Nifty Drops 269.95 Points

Microsoft Outage: Sensex Tumbles 738.81 Points To Settle At 80,604.65; Nifty Drops 269.95 Points Sensex tumbles 738.81 points to settle at 80,604.65;