India, April 13 -- Indian stock markets tumbled on Monday, as Iran and the United States failed to reach an agreement during the talks in Pakistan's Islamabad over the weekend.

Around opening time, at 9:15am, the 30-share S&P BSE Sensex fell 2.08 per cent to 75,937.20 points, while the 50-share NSE Nifty plunged 1.92% to 23,589 points.

During the initial trade, all the 30-Sensex firms were trading in the lower trend, with Titan, Sun Pharma, NTPC, Bharat Electronics, Power Grid, and Bharti Airtel being the biggest laggards. Follow US-Iran war news live updates

Meanwhile, Brent crude, the global oil benchmark, surged 7.33 per cent to $102.2 per barrel.

Markets remained down for the better part of the day on Monday, with the Nifty 50 tra...