of the Imambara. It was used as a treasury. Husainabad Mosque This mosque is built on a high platform with two grand minarets on the edge of the platform. This mosque is very beautifully decorated with floral designs and Quranic calligraphy. Satkhanda Outside the imambara is the watch tower called Satkhanda or tower of seven stories. Though it is called Satkhanda, it has only four stories, as the construction of the tower was abandoned when Ali Shah died. Satkhanda was built between 1837–1842 in the time of Muhammad Ali Shah. He wanted to make it the same as Qutub Minar of Delhi and the leaning tower of Pisa. Its main purpose is lunar observation. Improper restoration The building has been renovated; however, the process has been criticized. In 2016 The Economist wrote that "[this building] was recently “repaired” with modern cement, wrecking its subtle plasterwork". Gallery See also Chattar Manzil Imambara Shah Najaf Hussainia Imambaras of Lucknow Azadari in Lucknow Buland Darwaza References Imambaras of Lucknow Indo-Islamic architecture Buildings and structures completed in 1838 Mausoleums in Uttar Pradesh Shia shrines Awadh History of Lucknow 1838 establishments in India