Heritage buildings constructed during the Qutb Shahi and Nizam eras showcase Indo-Islamic architecture influenced by Medieval , Mughal and European styles . After the 1908 flooding of the Musi River , the city was expanded and civic monuments constructed , particularly during the rule of Mir Osman Ali Khan ( the VIIth Nizam ) , whose patronage of architecture led to him being referred to as the maker of modern Hyderabad . In 2012 , the government of India declared Hyderabad the first " Best heritage city of India "
flooding of the Musi River
Great Musi Flood of 1908
Hyderabad