Sisupalgarh or Sishupalgarh are a ruined fortification in Khurda District in Orissa, India. It is the largest and best preserved early historic fortification in India.The remains of the ancient city Sisupalgarh has been discovered near Bhubaneswar, capital of the Orissa state in India. Sisupalgarh is a nationally protected monument.
Archaeologists claim the city to be at least 2,500 years old. On the basis of the architectural pattern and artefacts discovered during the early excavations, B.B. Lal concluded that this fort city flourished between 3rd century BC and 4th century AD. On the basis of the new findings, M. Smith and R. Mohanty claim that the fortified city flourished from around 5th century BC and probably lasted well after the 4th century. Thus, this defensive settlement originated prior to the Mauryan empire.
Preservation of the Remains :
Since the site is nationally protected, it lies within the bailiwick of the Archaeological Survey of India. In 2006 the Indo German team made numerous drawings and a 3D scan of the column complex in order to document the preservation. This scan was then animated. The team also documented that considerable illegal building accelerated in 2005 on this nationally protected site.