Sensex, Nifty today: The Indian stock market opened lower on Thursday, even as concerns surrounding the rupee and cues from the global market weigh. The Sensex opened at 37,796, and soon plunged nearly 150 points to hit the day’s low at 37,644 within minutes of opening. The broader Nifty 50 opened at 11,397, below the psychological mark of 11,400. The rupee too opened at a record low of 70.32, recording a plunge of 43 paise against the dollar.