Sensex, Nifty start on a weak note; HDFC twins, RIL, Kotak Bank weigh on indices Updated : February 20, 2020 09:41 AM IST The benchmark 30-share S&P BSE Sensex started 63 points lower. The broader 50-share NSE Nifty50 dipped over 25 points. Published : February 20, 2020 09:41 AM IST