Farming is a major occupation for many people in countries like India, and it is the life line for entire population of the world. Water is the backbone of the farming industry. As per India is censured, lots of water gets wasted due to many reasons. Smart Irrigation System serves a way to minimize this wastage of water in agricultural fields. The system incorporates the features of IoT. The supply of water in the fields is controlled by sensing the requirement of water in the fields using various sensors and switching the pump on and off automatically according to the requirement.