Can two or more States agree to use Hindi as their official language for communication?
Yes, according to the context provided in Chapter II of the Constitution, two or more States can agree that Hindi should be their official language for communication between them. The language for the time being authorised for use in the Union for official purposes shall be the official language for communication between one State and another State. However, if two or more States agree that Hindi should be the official language for communication between such States, that language may be used for such communication.