Hyderabad city has witnessed flooding in the year 2001, 2003, 2008, 2016, 2017 due to heavy rainfall and many low lying areas were inundated. This paper presents the efforts in assessing three different modeling approaches for the simulation of urban flooding for a small urban catchment in Hyderabad city in Coupling of the 1D and 2D hydrodynamic model is necessary to consider flow interactions between underground However, in cases of major rainfall events, these types of models are unable to simulate inundation depth in built-up areas and to visualize flood extent. Conventional 1D modeling approaches are able to simulate quite accurately the drainage network. Over the past decades, there have been an increasing number of extreme rainfall and flood events occurring globally due to climate change, which paralyze cities and result in serious social and economic consequences. Urban flooding is a universal phenomenon and possesses a great challenge to the urban planners of the world over.
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