The purpose of the study is to identify the Factors that influence the Net Working Capital requirement of the company under the pharmaceutical sectors listed on the National Stock Exchange (NSE) and Bombay Stock Exchange (BSE) of India. The study followed static Pannal data analysis using fifteen years from 2010 to 2024 data from eight top pharmaceutical companies listed on Stock Exchange in India. To fulfill the objective of the study Net Working Capital (NWC) is considered as dependent variable Debt-Equity (DE), Inventory Turnover Ratio (ITR), Return on Asset (ROA) and Quick Ratio (QR) considered independent variables, and Price to Book Value (PB) considered as control variable. The study employees Pearsons Correlation test, Hadri LM Test, Kao and Pedroni test, Hausman test, Breusch-Pagan/Cook-Weisberg test and for the final result employee Fixed Effect model with the help of Statistical tool Stata-17.00. The result depicts that Debt- Equity (DE), Return on Assets (ROA) and Quick Ratio (QR) are the factors that have a significant impact on the Net Working Capital (NWC) requirement of the pharmaceutical companies listed in India.