Stock markets tumble as failure of U.S.–Iran negotiations fuels concerns
All the 30-Sensex firms were trading lower during the initial trade. Titan, Sun Pharma, NTPC, Bharat Electronics, Power Grid and Bharti Airtel were the biggest laggards. File. | Photo Credit: Reuters Indian stock markets tumbled in early trade on Monday (April 13, 2026) as the failure of U.S-Iran negotiations in Pakistan heightened concerns. The U.S….

