Given the lack of bullish strength amid an elevated India VIX, a weak broader technical structure, oil prices sustaining above $110 a barrel, and caution ahead of tonight's Federal Reserve meeting outcome, the Nifty 50 is expected to extend its consolidation with a negative bias. The 22,600 level is expected to act as immediate support, followed by 22,400 as a key support zone. However, the index needs to reclaim and sustain above 22,800 to move higher towards 23,000.