In a country with large number of rivers present, farming plays a key role in building the economy of that country. In a country like India, production of crop always has to meet the challenge of feeding the large population. Due to rise in demand of water in the various industrial sector and urban areas, it has become necessary to reduce the wastage of water in the crop fields. It has therefore been found by the researchers that traditional method of farming is not suitable to predict the right amount of water consumption in the field under the current situation of scarcity of water. Researchers have therefore invented the method of smart irrigation process that is capable to monitor soil parameters and control the process of watering the plants in the field. This method is popularly known as smart irrigation. Several costly systems have been designed by industries to meet the requirement of automatic irrigation. The objective of this paper is to provide a cost-effective solution for automatic irrigation system for the farmers who are unable to procure high cost solution.