The rules are made official through a notification in the:

The correct answer is Official Gazette. For any legal rules, regulations, or government notifications to become official, legally binding, and publicly accessible, they must be published in the Official Gazette. The Official Gazette serves as the authoritative public record of government actions and legislative instruments, ensuring transparency and legal certainty. National newspapers, Board's bulletins, or departmental circulars are not the legally recognized mediums for the official promulgation of such rules, although they might disseminate information, they lack the legal authority of the Gazette.