Nifty bank

Nifty bank has been moving positively from last 3 days and today also it gives a gap up opening and was perfectly consolidating for the 2/3 day but after it was near market closing time started to move downwards as if selling has been done on a large scale. Although it sustained above it's days low and perfectly ended with a Doji formation on a Daily- timeframe reflecting an indecision for tomorrow's opening and operations.
However, we are fully optimistic but if it tries to go below 43300 level then we can say its support near 43100/43000.
And our resistance will be 43800level if market tries to sustain above 43300 level tomorrow then we will be bullish on it.
Thanks