Stock market today: Nifty50 opens below 23,900; BSE Sensex down over 500 points

 Stock market today: Nifty50 and BSE Sensex opened in red on Thursday, a day after the stock market saw a record single day gain. While Nifty50 went below 23,900, BSE Sensex was down over 500 points. Stock market today: Nifty50 and BSE Sensex opened in red on Thursday, a day after the stock market saw a record single day gain. While Nifty50 went below 23,900, BSE Sensex was down over 500 points.