The Chattar Manzil [Umbrella Palace] was first constructed by General Claud Martin and later purchased by Nawab Ghazi Uddin Haider. The excellent architecture was completed after his death by his successor, Nawab Nasir Uddin Haider. The imposing building has large underground rooms and a dome surmounted by a gilt umbrella. Some time back these Palaces housed Central Drug Research Institute (CDRI), Lucknow.
CDRI is considered to be a pioneer research organization in the field of biomedical research and presently it is a multidisciplinary research laboratory consisting of scientific personnel of various areas of biomedical sciences. However, now it has been vacated by CDRI and it is under renovation. After some time, it will be open for tourists.