S&P downgrade warning erases 162 pts from Sensex
October 10, 2012 18:57 ISTMumbai, Oct 10: In knee-jerk reaction to S&P's rating downgrade threat, the Sensex today nosedived by 162 points to close at 18,631.10 on across-the-board selling, particularly in power, banks and PSU shares.Ratings major Standard &