The document analyzes the impact of capital structure on the profitability of listed public sector banks in India between 2008 and 2012, utilizing regression analysis to establish relationships between return on equity, return on assets, and earning per share with capital structure. It discusses the historical context of capital structure theories, including Modigliani and Miller's irrelevance theory, and highlights the ongoing debate regarding the optimal mix of debt and equity. The findings indicate a positive correlation between short-term debt and profitability, emphasizing the need for further research in this area.