In recent years the number of vehicles increased drastically and many times the car owners struggle to find the proper parking space within the city. IoT has great potential in implementing many of the smart city infrastructure requirements. Traffic congestion and the scarcity of car parking space have given a lot of opportunity for the research scholars to work in this field. In this paper we have proposed a smart car parking and reservation system. The proposed system is being controlled by

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... android app so as to reduce human intervention. This system reduces the traffic congestion and hence fuel consumption. To book the free slot for parking in advance is being done with the help of web application either using PC or mobile phone. This system can be used to book a free car parking slot within city.