The above Bank nifty screener gives you Live bank nifty stocks yesterday high and yesterday low breakout levels, in live market after following this levels you can easily find out the trend of banknifty .
Trend up= If major bank trades above yesterday high it means trend will be postive.
Trend Down =If major bank trades below yesterday low trend will be negative.
Neutral = If bank stocks trades between yesteray high and low then banknity will be act like sideways .
You can also track live banknifty heatmap for today market.