Shah Najaf Imambara was constructed by Nawab Ghazi-ud-Din Haider in 1818,[1][2] the last nawab wazir and the first King of the Oudh state in 1818 to 1827.

The building was named after the term Shah-e-Najaf (King of Najaf) which is an allusion to Ali.

[3] This imambara served as Ghazi-ud-Din Haider's mausoleum.

[citation needed] The thick walls around the mosque are said to have withstonod the heavy gun fires of British naval brigade during their advance in 1857.

[2][5] It is close to the Sikandar Bagh Chauraha and is flanked by National Botanical Research Institute on one side.