Drip irrigation, also known as trickle irrigation, is a type of micro-irrigation system that slowly and evenly applies low pressure water directly to the root zone of plants using plastic tubing. It is an alternative to other methods of irrigating crops and can be used for crops with different water demands. This method saves water and nutrients, minimizes weed problems, and maintains the optimum soil moisture level around the plant roots. Drip irrigation involves placing tubing with emitters along with the plants, slowly dripping water onto the soil at very low rates. It is essential for students of Agricultural Engineering and professionals of Water Resources to have knowledge about the design principles of drip systems. Water is conveyed under pressure through a pipe system to the fields and drips onto the soil through emitters or drippers. In comparison, sprinkler or spray irrigation is like rainfall, with water distributed through a network.