This paper explores the impact of derivatives market activity on stock price dynamics in the Indian stock market. The emergence of derivatives trading, particularly in the form of futures and options (F&O), has significantly altered trading strategies, market efficiency, and price discovery mechanisms. Using data from the National Stock Exchange of India (NSE), the study investigates the correlation between the derivatives market and stock price movements. By employing econometric tools and statistical analysis, we assess the influence of various derivatives market indicators such as open interest, trading volume, and price volatility on stock prices. The findings suggest that derivatives trading has a significant effect on stock price dynamics, contributing to both market liquidity and price volatility, with potential implications for market participants and policy-makers.