The Qila Mubarak complex is a rampart fort cum palace built in Sikh Palace architectural style- a derivative of Mughal and Rajput style of architecture in India.
It was built under the patronage of Maharaja Ala Singh in 1764. The whole complex comprises of various sections including Ran Baas (guest house), Darbar Hall, Qila Androon, with an underground sewerage system within the Qila, and Qila Bahadurgah.