WHAT'S DRIVING NIFTY DOWN ?

If you look into NIFTY chart so many indicators are giving bearish signals,like CCI,MACD,Stochstic in daily charts.Moving Average (13,20) bending down also . But am looking MACD in week chart which is near to break down after MARCH 2009.All looking supports 4340-4250 levels in NIFTY

You can check these thinks in chart given below.