Stock market today: BSE Sensex and Nifty, the Indian benchmark equity indices, started the week on a negative note on Tuesday. While BSE Sensex dipped over 200 points, Nifty50 slipped below 22,100. At 9:24 AM, BSE Sensex was trading at 72,693.62, down over 130 points or 0.19%. Nifty50 was at 22,069.50 down 27 points or 0.12%.