India's market capitalisation experienced its steepest decline since March 2020, dropping nearly 8% in October, primarily due to significant foreign investor sell-offs. The SENSEX and NIFTY fell over 4.7% and 5.7%, respectively, while broader BSE midcap and smallcap indices declined over 6.7%. This decline resulted in a loss of $37 billion, bringing the market cap down to $4.53 trillion, marking the fifth-largest global decline after Belgium, Portugal, Venezuela, and the Netherlands, according to Bloomberg data.