Video of skillful architecture of interior in Diwan E Khas, Red Fort, Agra. Uttar Pradesh, India They were related to medieval architecture. For example, Diwan-i-aam (Hall of Public audience) and Diwan-i-Khas (Hall of Private audience) were built by Shah Jahan in the Agra fort. Diwan-i-Khas or Hall of Private Audience was where the emperor would consult with his advisors and meet important visitors.