This document discusses non-performing assets (NPAs), which are loans or accounts classified as substandard, doubtful, or loss due to non-payment. NPAs do not generate income and are divided into standard, substandard, doubtful, and loss categories. Internal factors like defective lending processes and external factors like industrial sickness can cause NPAs. Tools for recovering NPAs discussed include Lok Adalats, Debt Recovery Tribunals, SARFAESI Act 2002, and Corporate Debt Restructuring. NPAs impact profitability, liquidity, share prices, borrower goodwill, banking growth, and economic growth.