BANK NIFTY HAS RETRACED ABOUT 78.6 PERCENT OF RECENT RALLY. POINT B AND C IN THE CHART ARE MAIN PIVOTS. CROSSING BELOW B MAY ACCELERATE THE DOWNWARD DRIFT. AND CROSSING ABOVE C MAY INVALIDATE THE PRESENT BEARISH OUT LOOK. SUPPORT FOR BANK NIFTY 27939,27700,27575 RESISTANCE FOR IT ARE 28108,28762 20 DAYS SMA.200 DAYS SMA AND 100 DAYS SMA ARE RESISTANCES.