The Indian stock market opened lower today, with the Sensex dropping 384.78 points (0.50%) to 77,178.12 and the Nifty50 falling 86.90 points (0.36%) to 23,910.55. This decline was primarily driven by rising crude oil prices, which surged 2.9% to $97.50 per barrel, alongside renewed geopolitical tensions after Iran accused the US of violating a ceasefire agreement. Iran's Parliament Speaker, Mohammad Bagher Ghalibaf, expressed increased distrust toward the US, citing ongoing conflicts involving Israel. Despite the overall market decline, the broader market showed some resilience, with the Nifty MidCap index up 0.28% and the Nifty SmallCap index gaining 0.57%. Sector performance varied, with Nifty Metal and Nifty Media indices outperforming, while Nifty IT lagged behind. In the Asia-Pacific region, markets also traded lower due to these geopolitical concerns, although US equities had closed sharply higher the previous day.