BIAS: NEUTRAL
REASON: Today's intraday Call OI additions at 55000 for BANKNIFTY and 25500 for FINNIFTY are defending their structural resistance levels of 55000 and 26000 respectively, while Put OI surges at 55500 for BANKNIFTY and 25500 for FINNIFTY are reinforcing support floors below spot. NIFTY and SENSEX show similar equilibrium with Call writers holding 24000/76000 resistance and Put writers defending 23000/73500 support, leaving spot prices trapped between these structural walls.