Banknifty is in rising wedge formation as we look at current levels it is at low of the channel 52400 area acting as support in case of this support voliates invalidation of channel and below levels can be tested 52200,52000,51800. In case held at support area it will continue with pattern making prices to check higher levels with minor resistance at 52800 area and major hurdle at 53250 to 53400 area where one needs to be cautious look for rejecion or breakout.
Please note that supports and targets mentioned can act as reversal check price action with price movements.