Prithviraj Chauhan Fort also known as Asigarh Fort is an old fort in Hansi that was built by the great King of the Chauhan dynasty, Prithviraj Chauhan. The fort is square shaped and is spread across an area of about 30 acres and has security posts in all the four corners. During the period of Firoz Shah Tughlaq keeping unseen security measures in mind, an underground tunnel was constructed that connected Hansi to Hissar. Figures of Gods are carved on the gates of the fort and the walls are beautifully decorated with images of Goddesses, birds and animals.
The Archaeological Survey declared the fort as the Protected Monument of National Importance in 1937. The open complex of the fort has ancient statues of Jain Gods such as Mahavira and Buddha. There is a sword manufacturing factory inside the fort that was said to have been established by a Tomar King. The fifty seven Jain idols were found during the excavation of the fort in 1982, and these were made of Asthadhatu (a mixture of eight expensive metals). This added further attraction to the fort.
The fort is mainly made of stones. The fort looks really old and this adds to its heritage beauty. The walls around are broken but the portico is still looks beautiful.