Diwan-i-Aam
Diwan-i-Aam or the public audience hall was built by Shah Jahan and it was used to hear the problems of the public. His successors also used the hall for the same purpose. The front hall of the Diwan-i-Aam has entrance from three sides. The dimension of the hall is 100 feet x 60 feet. The hall is divided into 27 square bays with the help of columns that support the arches.
The ceiling and columns of the hall is painted with gold while lime plaster is used to plaster the wall. Marble canopy can be found in the eastern wall. The canopy is covered by Bengal roof. The prime minister used to receive petition on a dais which was located below the throne. A gold plated railing separated the king from the courtiers.
Diwan-i-Khas
Diwan-i-Khas or the private audience hall was built with white marble on which precious stones were carved. The ceiling was built using silver and now it is replaced by wood. Peacock throne was also installed here which was taken away by Nadir Shah.