It is been observed that nifty -0.48% is in the final leg of Descending triangle on 15 Min chart. 15th Dec 0.89% opening will be the crucial level for Nifty -0.48% .
If open below 8170 will take it to immediate support 8150 levels which is a crucial support at present scenario. In case nifty -0.48% could not sustain at 8150 will take it to further down of 7910 level. Meanwhile open Above the triangle will take nifty -0.48% towards 8320 levels.
Oh meanwhile dont forget to look into the below one also.