A Public Sector Bank is a financial institution where the majority of the shares are owned by the government. These banks are established to provide banking services to the public and support economic development. They often offer various services, including savings accounts, loans, and investment options, with a focus on serving the needs of the community. Public sector banks play a crucial role in implementing government policies and programs, such as financial inclusion and rural development. They are typically more stable than private banks due to government backing, which helps build trust among customers and encourages savings and investments in the economy.