One of the functions of the Central Bank is

The Central Bank is responsible for managing a country's monetary policy and financial system. One of its primary functions is the issuance and regulation of the nation's currency. The Central Bank ensures that there is sufficient currency in circulation and that the money supply is stable. It also acts as a banker to the government, manages the country's foreign reserves, supervises commercial banks, and acts as a lender of last resort during financial crises. However, the Central Bank is not involved in the production of goods, presenting budgets, or printing of cheque books.