Adilabad, a fort of modest size, built on the hills to the south of Tughlaqabad was provided with protective massive ramparts on its boundary around the city of Jahanpanah. The fort was much smaller than its predecessor fort, Tughlaqabad fort, but of similar design. Archeological Survey of India (ASI) in its evaluation of the status of the fort for conservation has recorded that two gates, one with barbicans between two bastions on the south-east and another on the south-west. Inside, it, separated by a bailey, is a citadel consisting of walls, bastions and gates within which lay the palaces.
The fort was also known as ‘Muhammadabad’, but inferred as a later day development. The two gates on the southeast and southwest of Adilabad fort had chambers at the lower level while the east and west gates had grain bins and courtyards at the upper floors. The fortifications built, linking with the other two city walls, was 12 m (39.4 ft) in thickness and extended to a length of 8 km (5.0 mi). Another smaller fortress, called the Nai-ka-kot was also built at a distance of about 700 m (2,296.6 ft) from Adilabad, with citadel and army camps, which are now seen only in ruins.
Tughlaq’s primary attention to infrastructure, particularly of water supply to the city, was also well thought out. A structure (weir or tank) with seven sluices (Urdu:Satpula) was built on a stream that flowed through the city. This structure called the Satpula is still existing (though non–functional) near Khirki village on the boundary walls of Jahanpanah. Similar structures had also been built at Tughlaqabad and Delhi in Hauz Khas Complex, thus covering the water supply needs of entire population of Jahanpanah.