Qila Mubarak Complex, an ideal example of Sikh Palace architecture, is one of the prominent tourist attractions of the city. The entire city of Patiala has grown around the Qila Mubarak Complex. Built by Maharaja Ala Singh in 1764, this complex was the residence of Patiala Royals, until the construction of the Old Moti Bagh Palace. The complex was originally constructed as a mud fort or kachi garhi in an area of around 10 acres and then reconstructed as a pakka qila.
The complex is segregated into two parts - the inner part, called as the Qila Androon and the outer part, called as the Darbar Hall. The Darshani Gate, Shiva Temple and shops, selling traditional ornaments and clothes, catch the attention of tourists. The architecture of this palace is a perfect blend of the late Mughal and Rajasthani style.