aroung 2800-2834 is a very dangerous zone for nifty a cross over of 2834 would mean nifty crossing a resistence trendline thats haunting the bulls since aug-sept 2008.
i wouldnt hold overnight longs till nifty closes above 2834. this time if nifty doesnt sustain 2800 levels, may fall towards 2490 levels.
For intraday, it will be weak below 2755 levels, and trading below it, may see 2707 levels.
if sustains above 2755, will hit 2800 levels.
again will be a highly volatile day.
