Mandamus is a legal term that refers to a court order compelling a government official or agency to perform a specific duty that is required by law. It is often used when a person believes that their rights are being denied due to inaction or failure to act by a public authority. This type of writ is typically issued by higher courts, such as supreme courts or appellate courts, to ensure that lower courts or public officials fulfill their obligations. Mandamus serves as a tool to promote accountability and ensure that justice is served in accordance with the law.