What are the role of national bank over commercial bank?

National banks serve as the central banking authority of a country, overseeing and regulating the commercial banking system. They implement monetary policy, manage currency supply, and act as a lender of last resort to maintain financial stability. Additionally, national banks supervise commercial banks to ensure compliance with regulations, promote a stable banking environment, and protect depositors. Through these roles, national banks help facilitate economic growth and maintain trust in the financial system.