Market going down down and down

As expected 4000 is broken today but going to be volatile throughout the day, when will the market stabilise is the question everyone is interested.3600-3750 will be a reasonable bottom to start buying if one is bullish then.As a trader one should be be looking for a pull back after a steep fall as the chart suggests.But the overall scenario should also be supporting the buying decision like reduced oil heat ,good monsoon, good food production ,stable dollar etc.Right now, cash is the better option but waiting to buy.