India's stock market opened on a negative note today, with the BSE Sensex and NSE Nifty both witnessing sharp declines. The Sensex fell by 483.57 points to trade at 81,861.11, while the Nifty slipped below the 25,200 mark. Market factors Profit booking and FII outflows impact market The current market slump is mainly due to profit booking in major sectors such as IT, auto, and FMCG. Global influence US Federal Reserve's rate pause affects emerging markets The US Federal Reserve's decision to hold rates overnight has also contributed to the market downturn. This global factor is another reason behind today's decline in India's stock market indices.