BankNifty Support and Resistance levels to look and trade on friday are
immeadiate resistance if 49800 above sustains above long for targets of 50050,50230,50300,50400,50600.
Immeadiate support if 49600 below sustains below short for targets of 49400,49250,49100,49000.
Mentioned support and resistance including target areas can act as reversals please check price action on those.
Currently banknifty is taking support on daily timeframe trendline from below any positive price action on current level one can look for long if opens flat, this is one probability to keep for Friday apart from above support and resistance levels.