A spiraling wave of consolidation across the globe has heralded a sea change in the nature of the financial sector. Banking sector in India is not an exception to this phenomenon. By keeping the importance of Mergers and Acquisitions in Indian Banking Sector, the paper intends to study the performance evaluation of the merger Indian Commercial Banks in terms of their growth in Total Assets, Profits, Revenues, Investments and Deposits. In order to accomplish the objectives of the study the Mean, Growth Rate, Standard Deviation and t- test were employed. This study is also briefly peeps into some legal provisions providing room for consolidation and relevant provisions regarding Mergers, Amalgamations of banks under various Acts in India. It is found that the performance of sample banks is amplified in the post merger period over the pre merger period. Therefore if the banks plan the option of mergers carefully, they certainly improve their performance and may become the leaders of this sector to sustain their position in the global competitive world.