Indian equity markets regained lost foothold on Tuesday after markets gave up gains in early trade due to volatility over the novel coronavirus pandemic. At around 12:10 pm, BSE Sensex was up 634.04 or 2.44 per cent at 26,615.28 while NSE Nifty was trading 153 points or 2.01 per cent higher at 7,763.25. Earlier in the day, BSE Sensex jumped over 1,450 points at the opening bell while NSE Nifty crossed the 8,000 point mark. However, soon after trading activity started both benchmarks gave up most gains.