Markets ended lower for fourth consecutive day amid high volatility and settled around the day’s low on Wednesday. The news of rising COVID cases in India and caution ahead of the US Fed meet were weighing on investors’ sentiments. The BSE Sensex ended at 49,801.62, down 562.34 points or 1.12%. The Nifty closed at 14,721.30, down 189.15 points or 1.27%.