Indian stock markets witnessed a sharp selloff as the collapse of US-Iran diplomatic talks triggered global uncertainty. The BSE Sensex and NSE Nifty fell significantly amid rising crude oil prices, foreign investor outflows, rupee weakness, and growing concerns over inflation. As tensions in the Middle East escalated, investors shifted toward safer assets, creating pressure across global equity markets. This article provides a detailed analysis of the stock market crash, sector-wise impact, expert insights, and what investors should watch in the coming weeks.