Market Opening Bell: Sensex, Nifty Bank hit lifetime highs; HCL Tech among top gainers Updated : December 16, 2019 10:00 AM IST The Sensex opened 135.50 points or 0.33 percent higher at 41,145.21. The Nifty50 opened at 12,116.35, up 29.65 points or 0.25 percent. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.