CNBCTV18 Opening Bell: Sensex, Nifty start lower on higher crude prices; Titan top gainer Updated : September 17, 2019 10:09 AM IST The benchmark 30-share S&P BSE Sensex started on a weak note on Tuesday, trading at 37,102 in the initial tick, down over 20 points. The broader NSE Nifty50 slipped 18 points, or 0.17 percent, to 10,985. Bank, IT and finance declined among sectoral gauges, while pharma, FMCG, auto and capital goods advanced.