The Jahaj Kothi Museum, a past residence of George Thomas, sits inside the Firoz Shah palace complex.

[4] The palace, known as Hisar-i-Firuza, is located at a strategic point where the old Delhi Multan Road branches towards Khorasan, a historic region northeast of Iran.

The complex was completed in 1356 after two and a half years, and Firoz Shah ordered his courtiers to build their palaces within the walls of the fort.

Roughly seven meters tall, the single-story arched gateway has small built-in guard rooms on each side.

[1] The Nagauri Gate, now gone, led south to Nagaur and on to Jodhpur in Rajasthan via Siwani, Jhumpa Khurd, Rajgarh and Churu.

The gate provided access to Multan in Pakistan, Kandahar in Afghanistan, Mashhad in Iran, and Ashgabat in Turkmenistan.

[1] The Delhi gate, located at current Mehta Nagar here near Shaheed Bhagat Singh Chowk, faced east but is now gone.

The west and south sides of the structure were renovated by the Archaeological Survey of India and still stand with a flat roof and arched gateway and passages.

There are two doorways on the ground level and three on the second floor which open into the Diwan-e-khas, a central courtyard that served as a private audience hall.

[1][2] The stables are semi-underground and located between the tehkhana structure to the east of the main royal palace building and the Jahaj Kothi Museum.

It is an L-shaped liwan, 5 to 6 metres (16 to 20 ft) high, with a vaulted ceiling under a flat roof and an open courtyard.

Three rows of 50 red stone pillars line the longer western arm of the L-shaped liwan, which has 18 vaults in the ceiling.

The flat roof of the longer arm of the liwan is topped with two false domes, one each on the north and south sides.

[1][2] In the north-west corner of the liwan is a raised Takht-i-shahi or Muluk-khana platform on four smaller red stone pillars, where the throne of the king used to be.

[1][2] At the south-east end of the complex is the square Lat ki Masjid, a one-story, one-domed mosque made of red sandstone.

[1][2] To the south of the dome lies an above-ground masonry pond with an underground narrow passage connecting it to the basement of the Lat ki Masjid.

The mosque also has a narrow underground taircase in its northern wall, which emerges on the south-western edge of the ablution tank in the courtyard.

This has been proven by the inscriptions in Brahmi script on the pillar, deciphered in 1837 by James Prinsep, an archaeologist, philologist, and official of the East India Company.

[1][2] Close to the mosque lies a mound which most likely houses the ruins of an older Indus Valley civilization town.

Between the Gurjari Mahal and the main fort complex, there was once an Islamic garden, which now marks the location of modern-day Jindal Park, which flies a 207 ft (63 m) high Flag of India.

[1] Gurjari, the mistress of Firoz Shah Tughlaq, was a local resident of Hisar and belonged to the pastoral gujjar community.

[citation needed] The most visible part of what still remains of the palace is the baradari on the upper level, so named for the twelve doorways, three on each side.

Jahaj Kothi Museum, a later era building that was originally a Jain temple which was later used as residence by George Thomas, is located inside the Firoz Shah palace complex and is maintained by Archaeological Survey of India.

[9] A large British raj era historic building in the complex, to the northeast, was used as a residence for the superintendent of the Government Livestock Farm, Hisar (c.