Kartalab Khan Mosque or Begum Bazar Mosque, in the Begum Bazar area in old Dhaka, Bangladesh, was built by Nawab Diwan Murshid Quli Khan (alias Kartalab Khan) in 1701–04. It is beside the modern jail of the city. The mosque consists of a high valuated platform, a mosque with a 'dochala' annex on the north upon the western half of the platform and a 'baoli' (stepped well) to the east of the platform. Unlike the three-domed mosques at Lalbagh Fort and the Khan Mohammad Mridha Mosque, it is roofed by five bulbous domes resting on octagonal drums. The whole mosque was once reconstructed by the Jamider of Dhaka, Mirza Golam Pir. In accordance with Murshid Quli Khan's wishes, he was buried under the entrance to this mosque.