The document discusses various writs under the Indian constitution:
Habeas corpus can be used to protect prisoners from mistreatment and allows someone other than the detained person to file on their behalf if unable. It has led to compensation for illegal detention and release of those detained without cause.
Mandamus is used to direct public authorities to fulfill mandatory duties and has led to refunds of taxes and carrying out orders. Quo warranto challenges the authority of those holding public office. Certiorari examines the jurisdiction of lower courts but does not change their judgments. Prohibition prevents legal proceedings that are without jurisdiction.