Stock market today: Nifty50 and BSE Sensex, the Indian equity benchmark indices, opened in green on Monday. While Nifty50 went above 25,100, BSE Sensex was up over 400 points. Stock market today: Nifty50 and BSE Sensex, the Indian equity benchmark indices, opened in green on Monday. While Nifty50 went above 25,100, BSE Sensex was up over 400 points.