Internet of Things (IoT) is a new paradigm that has modified the standard method of living into a high-tech life vogue. Smart city, sensible homes, pollution management, energy saving, sensible transportation, sensible industries square measure such revolutionary transformations because of IoT. A great deal of crucial analysis studies and investigations are worn out order to boost the technology through IoT. The most goal of this paper is to supply an indepth discussion from each technological and social perspective. The paper discusses design and vital application domains. This paper would facilitate the readers and investigator to know the IoT and its relevancy to the world.