The effects of traditional development practices on the hydrologic cycle have been well documented. Increases in the impervious surfaces associated with urbanization have resulted in increased surface Runoff decreased base flow changes in stream morphology, increased stream temperature, aquatic/riparian loses. The goal of this paper to widely explores concept of low impact development as an innovative approach to stormwater management and ecosystem protection that integrates hydrologic controls into every aspect of site design to mimic the predevelopment hydrologic. This paper presents low impact development modeling of Rajkot city and compare various LID model by using Storm water Management Modelling system 5.0 After calibration and validation of the SWMM 5.0 it is applied over small watershed.. Various models are prepared i.e. LID1, LID2, Traditional curb and gutter model. Finally concluding Best Management Practice for stormwater management.