The Nifty index experienced choppy movement and closed slightly lower on Tuesday, the F&O expiry day for December. After an initial positive opening, the market declined for most of the session, with recoveries failing to sustain. Technical analysis suggests a doji-like candle formation at an uptrend line support, indicating market indecision. Analysts believe a confirmed upward move on Wednesday could signal a near-term bottom reversal, with immediate support at 25850-25800 and resistance at 26100.