Bank Nifty on Weekly Chart

Last week candle was not able to sustain above its supply zone @ 21150-21800. Even it failed to close in this supply zone.

*On the downside, there is a demand zone @ 19500-19650 and weekly close is above this zone.

*In any case, weekly close below 19500-19650 another 1500-2000 points downside range will open.