Following the catastrophe of November 2000 and February 2001, major structural changes took place in the financial sector especially with regard to Indian banks. Efforts have been made to review banking errors and financial regulation in the banking sector. Further to the function of the banking region in the ongoing transformation manner, the banking quarter’s reaction has come to be a crucial problem to address in the light of the 2008 regulatory and financial crisis. despite the fact that there are numerous research assessing bank performance, the CAMELS score, which is one of the most crucial strategies for analyzing bank performance, has important parameters that replicate the results of bank overall performance. It carries. The Indian banking zone consists of a huge variety of industrial banks, home banks, cooperative banks, retail banks and international banks within its territory. The current study attempted to evaluate the financial performance of three major banks (HDFC, SBI and Punjab National Bank) using the CAMELS Rating Model. THE CAMELS simulation model is basically the most widely used method of measuring the performance of a banking unit in and out of India. THE CAMELS simulation model is basically the most widely used method of measuring the performance of a banking unit in and out of India. This model measures the performance of banks in all key areas such as financial efficiency, Asset Quality, Management Efficiency, Revenue Quality, Liquidity and Market Sensitivity. The study is based on the second data taken from the annual reports.