In a uniquely designed empirical set-up involving a large set of Indian banks, this study establishes the relationship between market-based measures of default risk represented by Distance-to-Default (DD) and Distance-to-Capital (DC), and the market power reflected through the efficiency-based Lerner index. The results exhibit an inverse relationship between bank market power and bank default risk. Gross Nonperforming Assets (GNPAs), economic growth, and stock market volatility appear as other significant determinants of bank default risk. In the Indian context, this is the first study that utilizes a bank risk measure that incorporates the capital adequacy thresholds embedded under the revised Prompt Corrective Action (PCA) framework.