Indian equity markets experienced a mixed trading session on Monday, with benchmark indices Sensex and Nifty closing lower after touching record highs. Declines were primarily driven by IT and heavyweight banking stocks, influenced by geopolitical concerns stemming from U.S. military action in Venezuela and fresh tariff hike threats from the U.S. against India. Despite these pressures, some sectors like realty and auto showed strength, and several companies reported positive Q3 updates, contributing to cautious optimism.