 In 1830, the Ramna area, which included Shahbag, was incorporated into Dhaka city consequent to the deliberations of the Dacca Committee (for the development of Dacca town) founded by district collector Henry Walters.A decade later, Nawab Khwaja Alimullah, founder of the Dhaka Nawab Family and father of Nawab Khwaja Abdul Ghani, purchased the Shahbag "zamindari" (estate) from the East India Company.Upon his death, in 1868, the estate passed to his grandson Nawab Khwaja Ahsanullah.