On 16th july bank nifty
took support at 21238. After a doji
appeared last week on weekly charts, this week's big red candle shows weakness, with one day left for trading this week. Lets find on 17th july if this was a small reversal or just a pullback to again reach to 1/3rd retracement level. Place your stop loss and targets according to support and resistance
Comment if someone has any doubts.