Writ of Prohibition: * It is a judicial order issued by a higher court (Supreme Court or High Court) to a lower court or tribunal. * It prevents the lower court from exceeding its jurisdiction or acting contrary to law. * Purpose: To stop ongoing proceedings in a case where the lower court lacks jurisdiction or violates legal procedures. * Nature: It is preventive, ensuring the lower court does not act unlawfully rather than correcting a wrong decision after it has occurred. * Example: If a tribunal starts hearing a case that legally falls under the jurisdiction of a civil court, the Writ of Prohibition can halt such proceedings. * Comparison with Certiorari: Prohibition is issued before judgment to stop proceedings, whereas Certiorari is issued after judgment to quash orders passed unlawfully.