In the old days the hall was the formal audience hall where the king met his offiers for state business. Now it is used for many cermonies such as their Majesties Birthday and coronation day.The middle hall , Phaisal Thaksin, where important ceremonies such as coronation and solemn audience take place contains the gorgeous pavilion on which the King appears on these occasions.
The Chakri Maha Prasat Hall is an imposing building constructed after the plans of a British architect in a victorian style , but covered with a roof of pure Thai style. Most of it is occupied by the Thorne Hall.