Stock market today: Nifty50 and BSE Sensex, the Indian equity benchmark indices, opened flat in trade on Tuesday a day after an over 3.5% rally. While Nifty50 was near 24,900, BSE Sensex was above 82,400. Stock market today: Nifty50 and BSE Sensex, the Indian equity benchmark indices, opened flat in trade on Tuesday a day after an over 3.5% rally. While Nifty50 was near 24,900, BSE Sensex was above 82,400.