Modern age of agriculture 4.0 is focused on data driven precision farming that mostly employs the Internet of Things (IoT), artificial intelligence (AI), machine learning, big data analytics, robotics and drones. But due to lack of space, soil based agriculture has become quite challenging. Now the focus has been shifted to food production in urban regions where less space can be utilized using a new type of farming technique. This is called hydroponic farming technique. It does not require soil base for the production but only requires nutrient based solution which can be prepared easily at home. Also, a controlled environment inside a house can be used as a climate resilient. In this paper different methods proposed by researchers have been discussed on the sustainable model of soilless food production in less spacious regions by the help of cutting edge technology like Internet of Things.